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TCV7101F 2011-10-27 1 toshiba cmos integrated circuit silicon monolithic TCV7101F buck dc-dc converter ic the TCV7101F is a single-chip buck dc-dc converter ic. the TCV7101F contains high-sp eed and low-on-resistance power mosfets to achieve synchronous rectification using an external low-side mosfet, or rectification using an external diode, allowing for high efficiency. features ? enables up to 3.8 a of load current (i out ) with a minimum of external components. ? high efficiency: = 95% (typ.) (@v in = 5 v, v out = 3.3 v, i out = 1.5 a) (when using the tpc6008-h as a low-side mosfet) ? operating voltage range: v in = 2.7 v to 5.5 v ? low on-resistance: r ds (on) = 0.08 ? (high-side) typical (@v in = 5 v, tj = 25c) ? oscillation frequency: f osc = 600 khz (typ.) ? feedback voltage: v fb = 0.8 v 1% (@ tj = 25 c) ? incorporates an n-channel mosfet driver for synchronous rectification ? uses internal phase compensation to achieve high efficiency with a minimum of external components. ? allows the use of a small surface-mount ceramic capacitor as an output filter capacitor. ? housed in a small surface-mount package (sop advance) with a low thermal resistance. ? soft-start time adjustable by an external capacitor part marking pin assignment this product has a mos structure and is sensitive to electrostatic discharge. handle with care. the product(s) in this document (?product?) contain fu nctions intended to protect the product from temporary small overloads such as minor short-term overcurrent, or overheating. the pr otective functions do not necessarily protect product under all circumstances. when incorporating product into your system, please design the system (1) to avoid such overloads upon the product, and (2) to shut down or otherwise relieve the product of such overload conditions immediately upon occurrence. for details, please refer to the notes appearing below in this document and other documents referenced in this document. hson8-p-0505-1.27 weight: 0.068 g (typ.) part number (or abbreviation code) tcv 7101f lot no. the dot ( ? ) on the top surface indicates pin 1. * : the lot number consists of three digits. the first digit represents the last di git of the year of manufacture, and the following two digits indicates the week of manufacture between 01 and either 52 or 53. manufacturing week code (the first week of the year is 01; the last week is 52 or 53.) manufacturing year code (last digit of the year of manufacture3 v fb 5 lsg 7 en 6 2 v in2 3 ss 4 gnd l x 8 1 v in1
TCV7101F 2011-10-27 2 ordering information part number shipping TCV7101F (te12l, q) embossed tape (3000 units per reel) block diagram pin description pin no. symbol description 1 v in1 input pin for the output section this pin is placed in the standby state if v en = low. standby current is 10 a or less. 2 v in2 input pin for the control section this pin is placed in the standby state if v en = low. standby current is 10 a or less. 3 ss soft-start pin when the ss input is left open, the soft-start time is 1 ms (typ.). the soft-start time can be adjusted with an external capacitor. the exte rnal capacitor is charged from a 8 a (typ.) constant-current source, and the reference voltage of the error amplifier is regulated between 0 v and 0.8 v. the external capacitor is discharged when en = low and in case of undervoltage lockout or thermal shutdown. 4 gnd ground pin 5 v fb feedback pin this input is fed into an internal error amplifier with a reference voltage of 0.8 v (typ.). 6 en enable pin when en 1.5 v (@ v in = 5 v), the internal circuitry is allowed to operate and thus enable the switching operation of the output section. when en 0.5 v (@ v in = 5 v), the internal circuitry is disabled, putting the TCV7101F in standby mode. this pin has an internal pull-down resistor of approx. 500 k ? . 7 lsg gate drive pin for the low-side switch 8 l x switch pin this pin is connected to high-side p-channel mosfet. control logic current detection v in1 l x lsg + - slope compensation under voltage lockout v in2 constant-current source (8 a) gnd + - phase compensation soft start error amplifier ref. voltage (0.8 v) en v fb ss - short-circuit protection driver oscillator
TCV7101F 2011-10-27 3 absolute maximum ratings (ta = 25c) characteristics symbol rating unit input pin voltage for the output section v in1 ?0.3 to 6 v input pin voltage for the control section v in2 ?0.3 to 6 v soft-start pin voltage v ss ?0.3 to 6 v feedback pin voltage v fb ?0.3 to 6 v enable pin voltage v en ?0.3 to 6 v v en ? v in2 voltage difference v en -v in2 v en ? v in2 < 0.3 v lsg pin voltage v lsg ?0.3 to 6 v switch pin voltage (note 1) v lx ?0.3 to 6 v switch pin current i lx ?4. 6 a power dissipation (note 2) p d 2.2 w operating junction temperature t jopr ? 40 to125 c junction temperature (note 3) t j 150 c storage temperature t stg ? 55 to150 c note: using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this pr oduct to decrease in the reliability significantly even if the operating conditions (i.e. operat ing temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. please design the appropriate reliability upon reviewing the toshiba semiconductor reliability handbook (?handling precautions?/?derating concept and methods?) and individual reliability data (i.e. reliability test report and estimated failure rate, etc) note 1: the switch pin voltage (v lx ) doesn?t include the peak voltage generated by TCV7101F?s switching. a negative voltage generated in dead time is permitted among the switch pin current (i lx ). thermal resistance characteristics characteristics symbol max unit thermal resistance, junction to ambient r th (j-a) 44.6 (note 2) c/w thermal resistance, junction to case
6e` r th (j-c) 4.17 c/w note 2: note 3: the TCV7101F may enter into thermal shutdown at the rated maximum junction temperature. thermal design is required to ensure that the rated maximum operating junction temperature, t jopr , will not be exceeded. fr-4 25.4 25.4 0.8 (unit: mm) glass epoxy board sin g le-pulse measurement: p ulse width v
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TCV7101F 2011-10-27 4 electrical characteristics (t j = 25c, v in1 = v in2 = 2.7 to 5.5 v, unless otherwise specified) characteristics symbol test condition min typ. max unit operating input voltage v in (opr) D 2.7 D 5.5 v operating current i in v in1 = v in2 = v en = v fb = 5 v D 450 600 a output voltage range v out (opr) v en = v in1 = v in2 0.8 D D v i in (stby) 1 v in1 = v in2 = 5 v, v en = 0 v, v fb = 0.8 v D D 10 standby current i in (stby) 2 v in1 = v in2 = 3.3 v, v en = 0 v, v fb = 0.8 v D D 10 a high-side switch leakage current i leak (h) v in1 = v in2 = 5 v, v en = 0 v, v fb = 0.8 v, v lx = 0 v D D 10 a v ih (en) 1 v in1 = v in2 = 5 v 1.5 D D v ih (en) 2 v in1 = v in2 = 3.3 v 1.5 D D v il (en) 1 v in1 = v in2 = 5 v D D 0.5 en threshold voltage v il (en) 2 v in1 = v in2 = 3.3 v D D 0.5 v i ih (en) 1 v in1 = v in2 = 5 v, v en = 5 v 6 D 13 en input current i ih (en) 2 v in1 = v in2 = 3.3 v, v en = 3.3 v 4 D 9 a v fb1 v in1 = v in2 = 5 v, v en = 5 v tj = 0 to 85 0.792 0.8 0.808 v fb input voltage v fb2 v in1 = v in2 = 3.3 v, v en = 3.3 v tj = 0 to 85 0.792 0.8 0.808 v v fb input current i fb v in1 = v in2 = 2.7 to 5.5 v v fb = v in2 ?1 D 1 a r ds (on) (h) 1 v in1 = v in2 = 5 v, v en = 5 v i lx = ?1.5 a D 0.08 D high-side switch on-state resistance r ds (on) (h) 2 v in1 = v in2 = 3.3 v, v en = 3.3 v i lx = ?1.5 a D 0.1 D ? on-state resistance of high-side transistor connected to the lsg pin r lsg (on) (h) v in1 = v in2 = 5 v D 0.8 D on-state resistance of low-side transistor connected to the lsg pin r lsg (on) (l) v in1 = v in2 = 5 v D 0.4 D ? oscillation frequency f osc v in1 = v in2 = v en = 5 v 480 600 720 khz internal soft-start time t ss v in1 = v in2 = 5 v, i out = 0 a, measured between 0% and 90% points at v out . 0.5 1 1.5 ms external soft-start charge current i ss v in1 = v in2 = 5 v, v en = 5 v ?5 ?8 ?11 a high-side switch duty cycle dmax v in1 = v in2 = 2.7 to 5.5 v D D 100 % detection temperature t sd v in1 = v in2 = 5 v D 150 D thermal shutdown (tsd) hysteresis ' t sd v in1 = v in2 = 5 v D 15 D c detection voltage v uv v en = v in1 = v in2 2.35 2.45 2.6 recovery voltage v uvr v en = v in1 = v in2 2.45 2.55 2.7 undervoltage lockout (uvlo) hysteresis ' v uv v en = v in1 = v in2 D 0.1 D v l x current limit i lim v in1 = v in2 = 5 v, v out = 2 v 4.4 6.2 D a note on electrical characteristics the test condition t j = 25c means a state where any drifts in electrical characteristics incurred by an increase in the chip?s junction temperature can be ignored during pulse testing.
TCV7101F 2011-10-27 5 application circuit examples figure 1 shows a typical application circuit using a low-esr electrolytic or ceramic capacitor for c out . when using the TCV7101F with an external low-side mosfet: when using the TCV7101F with an external schottky barrier diode: figure 1 TCV7101F typical application circuit examples component values (reference value@ v in = 5 v, v out = 3.3 v, ta = 25c) q 1 : low-side fet (n-channel mosfet: tpc6008-h or tpc6012 (t5ls,f) manufactured by toshiba corporation) d i : low-side schottky barrier diode (schottky barrier diode: cms05 manufactured by toshiba corporation) c in : input filter capacitor = 10 f (ceramic capacitor: grm21bb30j106k manufactured by murata manufacturing co., ltd.) c out : output filter capacitor = 47 f (ceramic capacitor: grm31cb30j476m manufactured by murata manufacturing co., ltd.) c c : decoupling capacitor = 1 f (ceramic capacitor: grm155b30j105k manufactured by murata manufacturing co., ltd.) r fb1 : output voltage setting resistor = 7.5 k ? r fb2 : output voltage setting resistor = 2.4 k ? r s : snubber resistor = 10 ? c s : snubber capacitor = 220 pf (ceramic capacitor: grm1552c1h221j manufactured by murata manufacturing co., ltd.) l: inductor = 2.2 h ( rlf7030t-2r2m5r4 manufactured by tdk-epc corporation) c ss is a capacitor for adjusting the soft-start time. v in1 v in2 en ss TCV7101F gnd l x c ss c c v in en gnd c in v fb lsg c out v out gnd l sbd r fb1 r fb2 r s c s v in1 v in2 en ss TCV7101F gnd l x c ss c c v in en gnd c in v fb lsg c out v out gnd l q1 r fb1 r fb2
TCV7101F 2011-10-27 6 examples of component values (for reference only) output voltage setting v out inductance l input capacitance c in output capacitance c out feedback resistor r fb1 feedback resistor r fb2 1.2 v 2.2 h 10 f 100 f 7.5 k ? 15 k ? 1.51 v 2.2 h 10 f 100 f 16 k ? 18 k ? 1.8 v 2.2 h 10 f 100 f 15 k ? 12 k ? 2.5 v 2.2 h 10 f 47 f 5.1 k ? 2.4 k ? 3.3 v 2.2 h 10 f 47 f 7.5 k ? 2.4 k ? component values need to be adjusted, depending on the TCV7101F?s i/o conditions and the board layout. application notes inductor selection the inductance required for inductor l can be calculated as follows: in out losc out in v v if vv l ? ? ? = (1) v in : input voltage (v) v out : output voltage (v) f osc : oscillation frequency = 600 khz (typ.) i l : inductor ripple current (a) * : generally, i l should be set to approximately 30% of the ma ximum output current. since the maximum output current of the TCV7101F is 3.8 a, i l should be 1.14 a or so. the inductor should have a current rating greater than the peak output current of 4.4 a. if the inductor current rating is exceeded, the inductor becomes saturated, leading to an unstable dc-dc converter operation. when v in = 5 v and v out = 3.3 v, the required inductance can be calculated as follows. be sure to select an appropriate inductor, taking the in put voltage range into account. in out losc out in v v if vv l ? ? ? = v5 v3.3 1.14a 600khz v3.3v5 ? ? ? = = 1.64 h (2) figure 2 inductor current waveform setting the output voltage a resistive voltage divider is connected as shown in figure 3 to set the output voltage; it is given by equation 3 based on the reference voltage of the error amplifier (0.8 v typ.), which is connected to the feedback pin, v fb . r fb1 should be up to 30 k ? or so, because an extremely large-value r fb1 incurs a delay due to parasitic capacitance at the v fb pin. it is recommended that resistors with a precision of 1% or higher be used for r fb1 and r fb2 . ? ? ? ? ? ? ? ? +?= fb2 fb1 fb out r r 1vv ? ? ? ? ? ? ? ? +?= fb2 fb1 r r 1v8.0 (3) figure 3 output voltage setting resistors l x v fb r fb1 r fb2 v out i l i l osc f 1 t = in out on v v t ?= 0
TCV7101F 2011-10-27 7 output filter capacitor selection use a low-esr electrolytic or ceramic capacitor as the output filter capacitor. since a capacitor is generally sensitive to temperature, choose one with excellent temperature characteristics. as a rule of thumb, its capacitance should be 47 f or greater for applications where v out 2 v, and 100 f or greater for applications where v out < 2 v. the capacitance should be set to an opti mal value that meets the system?s ripple voltage requirement and transient load response characteristic s. the phase margin tends to decrease as the output voltage is getting low. enlarge a ca pacitance for output flatness when ph ase margin is insufficient, or the transient load response characteristics cannot be satisfied. since the ceramic capacitor has a very low esr value, it helps reduce the output ripple voltage; however, because the ceramic capacitor provides less phase margin, it should be thoroughly evaluated. output filter capacitors with a smaller value mentioned above can be used by adding a phase compensation circuit to the v fb pin. for example, suppose using three 10 f ceramic capacitors as output filter capacitors; then the phase compensation circuit should be programmed as follows: c p1 ( f) = 2 / r fb1 ( ? ) (4) c p2 ( f) = c p1 ( f) 10 (5) r fb2 // r p = r fb1 / 2 (6) * set the upper cut-off frequency of c p1 and r fb1 to approx. 60 khz (f osc /10). (4) * choose the value of c p2 to produce zero-frequency at 1/10th the upper cu t-off frequency. (5) * if r fb2 is less than half of r fb1 , r p and c p2 are not neces sary. (6) (only c p1 allows programming of v out above 1.8 v.) figure 4 phase compensation circuit examples of component values in the phas e compensation circuit (for reference only) the following values need tuning, depending on th e TCV7101F?s i/o conditions and the board layout. v out c out r fb1 r fb2 r p c p1 c p2 1.2 v 10 f 3 7.5 k ? 15 k ? 4.7 k ? 330 pf 3300 pf 1.51 v 10 f 3 16 k ? 18 k ? 15 k ? 150 pf 1500 pf 1.8 v 10 f 3 15 k ? 12 k ? D 220 pf D 2.5 v 10 f 3 5.1 k ? 2.4 k ? D 470 pf D 3.3 v 10 f 3 7.5 k ? 2.4 k ? D 330 pf D the phase compensation circuit show n above delivers good tr ansient load response characteristics with small-value output filter ca pacitors by programming f 0 (the frequency at which the open-loop gain is equal to 0 db) to a high frequency. for output filter capacitors, use low-esr ceramic capacitors with excellent temperature characteristics (such as the jis b characterist ic). although the external phase compensation circuit improves noise immunity, they should be thoroughly evaluated to ensure that the system?s ripple voltage requirement and transient load response characteristics are met. l x v fb r fb1 r fb2 v out c p1 c p2 r p c out 30 f
TCV7101F 2011-10-27 8 rectifier selection a low-side switch or schottky barrier diode shou ld be externally connected to the TCV7101F. it is recommended that an n-channel mosfet tpc60 08-h, tpc6012 (t5ls,f) or equivalent be on as a low-side switch. (please input by 4.5v or more and us e the voltage of the drive at the gate when it uses tpc6008-h.) and n-channel mosfet of a different type can also be used. however, if the switching speed of the external mosfet is low, a shoot-through current may fl ow due to the simultaneous co nduction of high-side and low-side switches, leading to device failu re. thus, observe the waveform at the l x pin while operating the TCV7101F with a current close to the rated value to make sure that there is a dead time (the period between the time when the low-side switch is turned off and the high -side switch is turned on) of more than 10 ns. thorough evaluation is required to ensure th at the TCV7101F provides an approp riate dead time even when in the end-product environment. as for the schottky barrier diode, th e cms05 is recommended to be used. using a schottky barrier diode tends to lead to a large voltage overshoot on the l x pin. thus, a series rc filter consisting of a resistor of r s = 10 ? and a capacitor of c s = 220 pf should be connected in parallel with the schottky barrier diode. power loss of a schottky barrier diode tends to increase due to an incr eased reverse current caused by the rise in ambient temperature and self-heating due to a supplied current. th e rated current should therefore be derated to allow for such conditions in selecting an appropriate diode. soft-start feature the TCV7101F has a soft-start feature. if the ss pin is left open, the soft-start time, t ss , for v out defaults to 1 ms (typ.) internally. the soft-start time can be extended by adding an external capacitor (c ss ) between the ss and gnd pins. the soft-start time can be calculated as follows: ss ss2 c1.0t ?= (7) t ss2 : soft-start time (in seconds) when an external capacitor is connected between ss and gnd. c ss : capacitor value ( f) the soft-start feature is activated when the tcv71 01f exits the undervoltage lockout (uvlo) state after power-up and when the voltage at the en pi n has changed from logic low to logic high. overcurrent protection ocp the TCV7101F has maximum current lim iting. the TCV7101F limits the on time of high side switching transistor and decreases output volt age when the peak value of the l x terminal current exceeds switching terminal peak current limitation i lim =6.2a(typ.). undervoltage lockout (uvlo) the TCV7101F has undervoltage lockout (uvlo) protection circuitry. the TCV7101F does not provide output voltage (v out ) until the input voltage (v in2 ) has reached v uvr (2.55 v typ.). uvlo has hysteresis of 0.1 v (typ.). after the switch turns on, if v in2 drops below v uv (2.45 v typ.), uvlo s huts off the switch at v out . figure 5 undervoltage lockout operation soft start v in2 hysteresis: v uv undervoltage lockout detection voltage v uv switching operation stops gnd v out gnd undervoltage lockout recovery voltage v uvr switching operation starts
TCV7101F 2011-10-27 9 thermal shutdown (tsd) the TCV7101F provides thermal shutdo wn. when the junction temperature continues to rise and reaches tsd (150c typ.), the TCV7101F goes into thermal shutdown and shuts off the power supply. tsd has a hysteresis of about 15c (typ.). the device is enabled again when the junction temperature has dropped by approximately 15c from the tsd trip point. the devi ce resumes the power supply when the so ft-start circuit is activated upon recovery from tsd state. thermal shutdown is intended to protect the device ag ainst abnormal system conditio ns. it should be ensured that the tsd circuit will not be activated during normal operation of the system. figure 6 thermal shutdown operation usage precautions ? the input voltage, output voltage, output current and temperature condit ions should be considered when selecting capacitors, inductors and resistors. these co mponents should be evalua ted on an actual system prototype for best selection. ? parts of this product in the surrounding are examples of the representative, and the supply might become impossible. please confirm late st information when using it. ? external components such as capacitors, inductors and resistors should be placed as close to the TCV7101F as possible. ? the TCV7101F has an esd diode between the en and v in2 pins. the voltage between these pins should satisfy v en ? v in2 < 0.3 v. ? add a decoupling capacitor (c c ) of 0.1 f to 1 f between the gnd and v in2 pins. to achieve stable operation, also insert a resistor of about 100 ? between the v in2 and v in1 pins to reduce the ripple voltage at the v in2 pin. ? the minimum programmable output voltage is 0.8 v (typ .). if the difference betw een the input and output voltages is small, the output voltage might not be regulated accurately and fluctuate significantly. ? gnd pin is connected with the back of ic chip and serves as the heat radiation pin. secure the area of a gnd pattern as large as possible fo r greater of heat radiation. ? the overcurrent protection circuits in the product are designed to temp orarily protect product from minor overcurrent of brief du ration. when the overcurrent protective func tion in the product activates, immediately cease application of overcurrent to prod uct. improper usage of product, such as application of current to product exceeding the absolute maximum ratings, could cause the overcurrent protecti on circuit not to operate properly and/or damage product permanently even before the protection circuit starts to operate. ? the thermal shutdown circuits in the product are designed to temporarily protect product from minor overheating of brief duration. when th e overheating protective function in the product activates, immediately correct the overheating situation. im proper usage of product, such as the application of heat to product exceeding the absolute maximum ratings, could cause the overheating protecti on circuit not to operate properly and/or damage product permanently even before the protection circuit starts to operate. soft start tsd detection temperature: t sd gnd switching operation stops recovery from tsd switching operation starts v out 0 t j hysteresis: t sd
TCV7101F 2011-10-27 10 typical performance characteristics 0 2 4 6 200 400 600 0 v en = v fb = v in t j = 25c v in = 5.5 v t j = 25c 0 2 4 6 5 3 1 8 20 0 16 12 4 ? 50 ? 25 0 25 50 75 125 100 v en = v in = 5 v v fb = v in ? 50 0 25 50 100 125 ? 25 75 v in = 5 v v ih(en) v il(en) ? 50 ? 25 0 25 50 75 100 125 v in = 3.3 v v ih(en) v il(en) ? 50 ? 25 0 25 50 75 125 100 i in ? v in i in ? t j input voltage v in (v) junction temperature t j (c) operating current i in ( a) operating current i in ( a) i in ? t j v ih(en) , v il(en) ? t j junction temperature t j (c) junction temperature t j (c) operating current i in ( a) en threshold voltage v ih(en) , v il(en) (v) v ih(en) , v il(en) ? t j i ih(en) ? v en junction temperature t j (c) en input voltage v en (v) en threshold voltage v ih(en) , v il(en) (v) en input current i ih(en) ( a) 200 400 600 0 200 400 600 0 1 2 0 1.5 0.5 1 2 0 1.5 0.5 v en = v in = 3.3 v v fb = v in
TCV7101F 2011-10-27 11 undervoltage lockout voltage v uv , v uvr (v) 2 3 4 5 6 0.8 0.82 0.78 v en = v in v out = 1.2 v t j = 25c 4 8 12 20 0 16 v in = 5 v v en = 5 v ? 50 ? 25 0 50 75 100 125 25 v en = v in t j = 25c 2.7 2.2 2.4 2.3 2.5 2.6 0 2 1.5 0.5 1 recovery voltage (v uvr ) detection voltage (v uv ) ? 50 ? 25 0 25 50 75 100 125 2.6 2.3 2.5 2.4 v en = v in v in = 5 v v out = 1.2 v v en = v in ? 50 0 25 50 75 100 125 ? 25 0.8 0.82 0.78 0.79 0.81 v in = 3.3 v v out = 1.2 v v en = v in ? 50 ? 25 0 25 50 75 125 100 0.8 0.82 0.78 0.79 0.81 i ih(en) ? t j v uv , v uvr ? t j junction temperature t j (c) junction temperature t j (c) en input current i ih(en) ( a) v out ? v in v fb ? v in input voltage v in (v) input voltage v in (v) output voltage v out (v) v fb input voltage v fb (v) v fb ? t j v fb ? t j junction temperature t j (c) junction temperature t j (c) v fb input voltage v fb (v) v fb input voltage v fb (v) 0.79 0.81
TCV7101F 2011-10-27 12 v in = 5 v t j = 25c 2 3 4 5 6 v in = 3.3 v f osc ? v in f osc ? t j input voltage v in (v) junction temperature t j (c) oscillation frequency f osc (khz) oscillation frequency f osc (khz) i ss ? v in i ss ? t j input voltage v in (v) junction temperature t j (c) external soft-start charge current i ss ( a) external soft-start charge current i ss ( a) i ss ? t j junction temperature t j (c) external soft-start charge current i ss ( a) ? 12 ? 10 ? 8 ? 6 ? 4 ? 2 0 ? 12 ? 10 ? 8 ? 6 ? 4 ? 2 0 ? 50 ? 25 0 25 50 75 100 125 ? 50 ? 25 0 25 50 75 100 125 ? 12 ? 10 ? 8 ? 6 ? 4 ? 2 0 t j = 25c 700 750 2 3 4 5 6 450 500 600 550 650 v in = 5 v ? 50 ? 25 0 25 50 75 100 125 700 750 450 500 600 550 650
TCV7101F 2011-10-27 13 0 1 4 2 3 0 30 ? 30 20 10 ? 10 ? 20 v out ? i out v out ? i out output current i out (a) output current i out (a) output voltage v out (mv) output voltage v out (mv) v in = 5 v , v out = 3.3 v l = 2.2 h , c out = 47 f ta = 25c tpc6008-h 0 30 10 ? 20 ? 30 v in = 5 v , v out = 1.2 v l = 2.2 h , c out = 47 f 2 ta = 25c tpc6008-h 0 1 4 2 3 ? 10 20 0 1 4 2 3 0 30 ? 30 20 10 ? 10 ? 20 v out ? i out v out ? i out output current i out (a) output current i out (a) output voltage v out (mv) output voltage v out (mv) v in = 5 v , v out = 3.3 v l = 2.2 h , c out = 47 f ta = 25c tpc6012(t5ls,f) 0 30 10 ? 20 ? 30 v in = 5 v , v out = 1.2 v l = 2.2 h , c out = 47 f 2 ta = 25c tpc6012(t5ls,f) 0 1 4 2 3 ? 10 20 0 1 4 2 3 0 30 ? 30 20 10 ? 10 ? 20 v out ? i out output current i out (a) output voltage v out (mv) v in = 3.3 v , v out = 1.2 v l = 2.2 h , c out = 47 f 2 ta = 25c tpc6012(t5ls,f)
TCV7101F 2011-10-27 14 v out ? v in input voltage v in (v) output voltage v out (mv) 2 3 4 5 6 v out = 3.3 v, i out = 10 ma l = 2.2 h, c out = 47 f ta = 25c, tpc6008-h 0 40 20 ? 20 ? 40 ? 10 10 30 ? 30 v out ? v in input voltage v in (v) output voltage v out (mv) 0 20 10 ? 10 ? 20 2 3 4 5 6 v out = 1.2 v, i out = 10 ma l = 2.2 h, c out = 47 f 2 ta = 25c, tpc6008-h 0 80 20 100 60 40 ? i out 0 1 3 2 4 0 80 20 100 60 40 v in = 5 v , v out = 1.2v l = 2.2 h , c out = 47 f 2 ta = 25c , tpc6008-h efficiency (%) output current i out (a) v in = 5 v , v out = 3.3 v l = 2.2 h , c out = 47 f ta = 25c , tpc6008-h v in = 5 v , v out = 1.2v l = 2.2 h , c out = 47 f 2 ta = 25c , tpc6012(t5ls,f) ? i out output current i out (a) efficiency (%) 0 1 3 2 4 ? i out 0 1 3 2 4 0 80 20 100 60 40 v in = 5 v , v out = 3.3v l = 2.2 h , c out = 47 f ta = 25c , tpc6012(t5ls,f) efficiency (%) output current i out (a) ? i out 0 1 3 2 4 0 80 20 100 60 40 efficiency (%) output current i out (a)
TCV7101F 2011-10-27 15 0 0 3 2 4 1 3.5 4 7 5.5 6.5 4.5 5 6 output current i out (a) v in = 5 v , v out = 3.3 v l = 2.2 h , c out = 47 f ta = 25c , cms05 efficiency (%) 0 1 3 2 4 ? i out 0 80 20 100 60 40 output current i out (a) v in = 3.3 v , v out = 1.2 v l = 2.2 h , c out = 47 f 2 ta = 25c , tpc6012(t5ls,f) efficiency (%) 0 1 3 2 4 ? i out 0 80 20 100 60 40 overcurrent protection overcurrent protection output current i out (a) output current i out (a) output voltage v out (v) output voltage v out (v) v out = 1.2 v, ta = 25c l = 2.2 h, c out = 47 f 2 tpc6008-h input voltage: v in = 5.5 v input voltage: v in = 2.7 v 3.5 4 7 5.5 6.5 4.5 5 6 input voltage: v in = 5.5 v 1.5 1 2 0.5 v out = 1.2 v, ta = 25c l = 2.2 h, c out = 47 f tpc6008-h
TCV7101F 2011-10-27 16 startup characteristics (internal soft-start time) output voltage: v out : ( 1 v/div ) v in = 5 v v out = 3.3 v ta = 25c l = 2.2 h c out = 47 f en voltage: v en = l h 200 s/div 2 ms/div v in = 5 v v out = 3.3 v ta = 25c l = 2.2 h c out = 47 f output voltage: v out : (1 v/div) startup characteristics (c ss = 0.1 f) en voltage: v en = l h load response characteristics load response characteristics 100 s/div 100 s/div output current: i out (10 ma 3 a 10 output voltage: v out (200 mv/div) v in = 5 v, v out = 3.3 v, ta = 25c l = 2.2 h, c out = 47 f tpc6008-h output current: i out (10 ma 3 a 10 ma) output voltage: v out (100 mv/div) v in = 5 v, v out = 1.2 v, ta = 25c l = 2.2 h, c out = 47 f 2 tpc6008-h load response characteristics 100 s/div output current: i out (1.9 a 3.8 a 1.9 a) output voltage: v out (50 mv/div) v in = 5 v, v out = 1.2 v, ta = 25c l = 2.2 h, c out = 47 f 2 tpc6008-h load response characteristics (with an external phase compensation circuit) 100 s/div v in = 5 v, v out = 1.2 v, ta = 25c l = 2.2 h, c out = 10 f 3, tpc6008-h r p = 4.7k ? , c p1 = 330 pf, c p2 = 3300 pf output voltage: v out (50 mv/div) output current: i out (1.9 a 3.8 a 1.9 a) output voltage: v out : (1 v/div)
TCV7101F 2011-10-27 17 package dimensions hson8-p-0505-1.27 unit: mm weight: 0.068 g (typ.)
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