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MIC5380/1
High Performance Dual 150mA LDO 1mm x 1mm Thin MLF(R)
General Description
The MIC5380/1 is an advanced dual LDO ideal for powering space constrained portable devices. The MIC5380/1 provides two independently controlled, high performance 150mA LDOs in an ultra small 1mm x 1mm (R) Thin MLF package. Ideal for battery powered applications, the MIC5380/1 offers 1% typical accuracy, low dropout voltage (155mV at 150mA) and low ground current. The MIC5380/1 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5380/1 offers fast transient response and high PSRR while consuming minimal operating current. When the MIC5381 is disabled an internal resistive load is automatically applied to the output to discharge the output capacitor. The MIC5380/1 is available with fixed output voltages in a (R) lead-free (RoHS compliant) 6-pin 1mm x 1mm Thin MLF package. Data sheets and support documentation can be found on Micrel's web site at: www.micrel.com.
Features
* * * * * * * * * * * 6-pin 1mm x 1mm Thin MLF package 2.5V to 5.5V input voltage range 150mA output current per LDO High output accuracy 1% typical Low quiescent current 32A per LDO Stable with 0402 1F ceramic output capacitors Low dropout voltage 155mV at 150mA Output discharge circuit on MIC5381 Independent enable pins Thermal shutdown protection Current limit protection
(R)
Applications
* * * * * * Bluetooth headsets Mobile phones GPS, PMP, PDAs , DSCs USB thumb drive Medical handheld Portable handheld electronics
___________________________________________________________________________________________________________
Typical Application
MIC5380/1-xxYFT VIN EN1 VBAT 1F EN2 GND VOUT1 VOUT2 1F 1F I/O VCORE
Camera DSP Power Supply Circuit
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. * 2180 Fortune Drive * San Jose, CA 95131 * USA * tel +1 (408) 944-0800 * fax + 1 (408) 474-1000 * http://www.micrel.com
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MIC5380/1
Block Diagrams
VIN
LDO1
VOUT1
LDO2 EN1 EN2 ENABLE
VOUT2
REFERENCE
GND
MIC5380 Block Diagram
VIN
LDO1
VOUT1
LDO2 EN1 EN2 ENABLE AUTO DISCHARGE
VOUT2
REFERENCE
GND
MIC5381 Block Diagram
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Ordering Information
Lead Free (1) Part Number Manufacturing Part Number Marking (2) Code Voltage1 Voltage2 Junction Temp. Range Package
(3) (R) (R) (R) (R) (R) (R) (R) (R) (R) (R) (R) (R) (R)
MIC5380-3.3/3.3YFT MIC5380-3.0/3.0YFT MIC5380-2.85/1.8YFT MIC5380-2.8/1.8YFT MIC5380-2.8/1.2YFT MIC5380-2.7/2.7YFT MIC5380-2.6/2.0YFT MIC5380-1.8/1.2YFT MIC5381-3.3/3.3YFT * MIC5381-3.0/3.0YFT * MIC5381-2.8/1.8YFT * MIC5381-2.8/1.2YFT * MIC5381-1.8/1.2YFT *
Note: 1. 2. 3. *
MIC5380-SSYFT MIC5380-PPYFT MIC5380-NGYFT MIC5380-MGYFT MIC5380-M4YFT MIC5380-LLYFT MIC5380-KHYFT MIC5380-G4YFT MIC5381-SSYFT MIC5381-PPYFT MIC5381-MGYFT MIC5381-M4YFT MIC5381-G4YFT
S2 2P NG GM 4M 2L KH 4G MK MF MG M4 G4
3.3V 3.0V 2.85V 2.8V 2.8V 2.7V 2.6V 1.8V 3.3V 3.0V 2.8V 2.8V 1.8V
3.3V 3.0V 1.8V 1.8V 1.2V 2.7V 2.0V 1.2V 3.3V 3.0V 1.8V 1.2V 1.2V
-40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C -40 to +125C
6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF 6-Pin 1x1 Thin MLF
Other voltages available. Contact Micrel for details. Thin MLF(R) Pin 1 Identifier = . Thin MLF(R) is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. MIC5381 offers Auto-Discharge function.
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Pin Configuration
VIN 6 VOUT1 1 5 GND
VOUT2
2 3 EN2
4
EN1
6-Pin 1mm x 1mm Thin MLF (FT) (Top View)
(R)
Pin Description
Pin Number Pin Name Pin Function
1 2 3 4 5 6
VOUT1 VOUT2 EN2 EN1 GND VIN
Regulator Output - LDO1. Regulator Output - LDO2. Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off; Do not leave floating. Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off; Do not leave floating. Ground. Supply Input.
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Absolute Maximum Ratings(1)
Supply Voltage (VIN) ........................................ -0.3V to +6V Enable Voltage (VEN1, VEN2)............................... -0.3V to VIN (3) Power Dissipation (PD) ........................... Internally Limited Lead Temperature (soldering, 10sec.)....................... 260C Junction Temperature (TJ) ........................ -40C to +125C Storage Temperature (Ts) ......................... -65C to +150C (4) ESD Rating .................................................................. 2kV
Operating Ratings(2)
Supply Voltage (VIN)....................................... +2.5V to 5.5V Enable Voltage (VEN1, VEN2)............................... -0.3V to VIN Junction Temperature (TJ) ........................ -40C to +125C Junction Thermal Resistance 1mm x 1mm Thin MLF-6 (JA) .........................150C/W
Electrical Characteristics(5)
VIN = VEN1 = VEN2 = VOUT + 1V; higher of the two regulator outputs; IOUTLDO1 = IOUTLDO2 = 100A; COUT1 = COUT2 = 1F; TJ = 25C, bold values indicate -40C to +125C, unless noted.
Parameter Condition Min -3.0 Typ Max +3.0 Units
Output Voltage Accuracy Line Regulation Load Regulation Dropout Voltage Ground Pin Current
Variation from nominal VOUT Variation from nominal VOUT; -40C to +85C VIN = VOUT +1V to 5.5V, IOUT = 100A IOUT = 100A to 150mA IOUT = 50mA IOUT = 150mA VEN1 = High; VEN2 = Low; IOUT = 0mA VEN1 = Low; VEN2 = High; IOUT = 0mA VEN1 = VEN2 = High; IOUT1 = IOUT2 = 0mA
1 0.02 0.3 55 155 32 32 59 0.05 60 200 325 200 30 550
0.3
% % %/V % mV mV A A A A dB mA VRMS
1
110 310 45 45 85
Ground Pin Current in Shutdown Ripple Rejection Current Limit Output Voltage Noise Auto-Discharge NFET Resistance
Enable Inputs (EN1/EN2)
VEN1 = VEN2 = 0V f = 1kHz; COUT = 1F VOUT = 0V COUT = 1F, 10Hz to 100kHz MIC5381 Only; VEN1 = VEN2 = 0V; VIN = 3.6V
1
Enable Input Voltage Enable Input Current Turn-on Time
Notes:
Logic Low Logic High VIL 0.2V VIH 1.2V COUT = 1F
1.2
0.2
V V A A s
0.01 0.01 50
1 1 125
1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) - TA) / JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. 5. Specification for packaged product only.
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Typical Characteristics
Power Supply Rejection Ratio
3.0 2.5 100A 2.0
Output Voltage vs. Input Voltage
LDO1-150mA LDO1-100A
2.90 2.88 2.86 2.84 2.82
Output Voltage vs. Output Current
VIN=4.8V
VIN=3.8V
1.5 LDO2-100A 1.0 VIN = VEN = 3.8V VOUT = 2.8V COUT = 1F 100 1k 10k 100k FREQUENCY (Hz) 1M 0.5 0 2.5
LDO2-150mA
2.80 2.78 2.76 2.74 2.72 2.70 0 VIN=5.5V VIN = VEN VOUT = 2.8V CIN = COUT = 1F 25 50 75 100 125 150 OUTPUT CURRENT (mA)
0 10
VOUT1 = 2.8V VOUT2 = 1.8V CIN = COUT =1F 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE (V)
40 50mA 38 36 34 150mA 32 30 28 26 24 22 20 2.5
Ground Current vs. Input Voltage
80 70 60 50 40 30
Ground Current vs. Output Current
Dual Output
65 60 55
Ground Current vs. Temperature
Dual Output(100A)
Single Output VEN = VIN = VOUT + 1V VOUT1 = 2.8V VOUT2 = 1.2V CIN = COUT = 1F 25 50 75 100 125 150 OUTPUT CURRENT (mA)
50 VOUT1 = 2.8V 45 VOUT2 = 1.8V 40 35 30 25
V IN = V EN = 3.8V
100A VIN = VEN VOUT2 = 1.8V CIN = COUT = 1F 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE (V) 5.5
CIN = C OUT = 1F Single Output(50mA) Single Outputs(100A)
20 10 0 0
20 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
180 160 140 120 100 80 60 40 20 0 0
Dropout Voltage vs. Output Current
250 200 150 100
Dropout Voltage vs. Temperature
CIN = COUT = 1F 150mA
500 400
Current Limit vs. Input Voltage
LDO1
100mA
300 200
LDO2
50mA
VOUT = 2.8V CIN = COUT = 1F 25 50 75 100 125 150 OUTPUT CURRENT (mA)
50
10mA
100 0 2.5
0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
VOUT1 = 2.8V VOUT2 = 1.8V CIN = COUT = 1F 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE (V) 5.5
1.0 0.8 0.6 0.4 0.2 0 3.0
Enable Voltage vs. Input Voltage
EN1 ON
10
Output Noise Spectral Density
1
EN1 OFF
0.1
VOUT1 = 2.8V CIN = COUT = 1F Load = 150mA 3.5 4.0 4.5 5.0 INPUT VOLTAGE (V) 5.5
0.01
0.001 10
V IN = 4.5V V OUT = 1.2V COUT = 1F
100
1k 10k 100k 1M 10M FREQUENCY (Hz)
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Functional Characteristics
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MIC5380/1 Enable/Shutdown The MIC5380/1 comes with two active-high enable pins that allow each regulator to be disabled independently. Forcing the enable pin low disables the regulator and sends it into a "zero" off-mode-current state. In this state, current consumed by the regulator goes nearly to zero. When disabled the MIC5381 switches a 30 (typical) load on the regulator output to discharge the external capacitor. Forcing the enable pin high enables the output voltage. The active-high enable pin uses CMOS technology and the enable pin cannot be left floating; a floating enable pin may cause an indeterminate state on the output. Thermal Considerations The MIC5380/1 is designed to provide 150mA of continuous current for both outputs in a very small package. Maximum ambient operating temperature can be calculated based upon the output current and the voltage drop across the part. For example, if the input voltage is 3.6V, and the output voltage 3.0V for VOUT1, 3.0V for VOUT2 and output current = 150mA, then the actual power dissipation of the regulator circuit can be calculated using the equation: PD = (VIN - VOUT1) IOUT1 + (VIN - VOUT2) I OUT2 + VIN IGND Because this device is CMOS and the ground current is typically <100A over the load range, the power dissipation contributed by the ground current is < 1% and can be ignored for this calculation. PD = (3.6V - 3.0V) x 150mA + (3.6V - 3.0V) x 150mA PD = 0.18W To determine the maximum ambient operating temperature of the package, use the junction-to-ambient thermal resistance of the device and the following basic equation:
Application Information
MIC5380/1 is a dual 150mA LDO in a small 1mm x 1mm (R) Thin MLF package. The MIC5381 includes an autodischarge circuit for each of the LDO outputs that is activated when the output is disabled. The MIC5380/1 regulator is fully protected from damage due to fault conditions through linear current limiting and thermal shutdown. Input Capacitor The MIC5380/1 is a high-performance, high bandwidth device. An input capacitor of 1F capacitor is required from the input-to-ground to provide stability. Low-ESR ceramic capacitors provide optimal performance at a minimum of space. Additional high-frequency capacitors, such as small-valued NPO dielectric-type capacitors, help filter out high-frequency noise and are good practice in any RF-based circuit. X5R or X7R dielectrics are recommended for the input capacitor. Y5V dielectrics lose most of their capacitance over temperature and are therefore, not recommended. Output Capacitor The MIC5380/1 requires an output capacitor of 1F or greater to maintain stability. The design is optimized for use with low-ESR ceramic chip capacitors. High ESR capacitors may cause high frequency oscillation. The output capacitor can be increased, but performance has been optimized for a 1F ceramic output capacitor and does not improve significantly with larger capacitance. X7R/X5R dielectric-type ceramic capacitors are recommended because of their temperature performance. X7R-type capacitors change capacitance by 15% over their operating temperature range and are the most stable type of ceramic capacitors. Z5U and Y5V dielectric capacitors change value by as much as 50% and 60%, respectively, over their operating temperature ranges. To use a ceramic chip capacitor with Y5V dielectric, the value must be much higher than an X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. No-Load Stability Unlike many other voltage regulators, the MIC5380/1 will remain stable and in regulation with no load. This is especially important in CMOS RAM keep-alive applications.
TJ(MAX) - TA PD(MAX) = JA

TJ(max) = 125C, and the maximum junction temperature of the die, JA, thermal resistance = 150C/W. Substituting PD for PD(max) and solving for the ambient operating temperature will give the maximum operating conditions for the regulator circuit. The junction-toambient thermal resistance for the minimum footprint is 150C/W. The maximum power dissipation must not be exceeded for proper operation.
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Micrel, Inc. For example, when operating the MIC5380-PPYFT at an input voltage of 3.6V and 150mA loads at each output with a minimum footprint layout, the maximum ambient operating temperature TA can be determined as follows: 0.18W = (125C - TA)/(150C/W) TA = 98C
MIC5380/1 Therefore, a 3.0V/3.0V application, with 150mA at each output current, can accept an ambient operating (R) temperature of 98C in a 1mm x 1mm MLF package. For a full discussion of heat sinking and thermal effects on voltage regulators, refer to the "Regulator Thermals" section of Micrel's Designing with Low-Dropout Voltage Regulators handbook. This information can be found on Micrel's website at: http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
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MIC5380/1
J1 VIN J7 EN1 C3 1F/10V J2 GND
U1 MIC5380/1-xxYFT
6
VIN
VOUT1 VOUT2
1 2
J3 VOUT1 J5 VOUT2 J8 EN2 C2 1F/10V J4 GND J6 GND
4
EN1 GND
5
EN2
3
C1 1F/10V
Bill of Materials
Item C1, C2, C3 U1
Notes: 1. Murata: www.murata.com 2. TDK: www.tdk.com 3. AVX: avx.com 4. Micrel, Inc.: www.micrel.com
Part Number GRM155R61A105KE19D C1005X5R1A105K 0402ZD105KAT2A MIC5380/1-xxYFT
Manufacturer Murata TDK AVX
(1) (2) (3)
(4)
Description Capacitor, 1F Ceramic, 10V, X5R, Size 0402 Capacitor, 1F Ceramic, 10V, X5R, Size 0402 Capacitor, 1F Ceramic, 10V, X5R, Size 0402 Dual, 150mA LDO, Size 1mm x 1mm Thin MLF
(R)
Qty. 3
Micrel
1
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PCB Layout Recommendations
Top Layer
Bottom Layer
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Package Information
6-Pin 1mm x 1mm Thin MLF (FT)
(R)
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2008 Micrel, Incorporated.
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