24 ics 1-1-1 linear regulator ics absolute maximum ratings unit v v v a w c c c c /w c /w ratings 10 10 v in 1.5 1.1 ?0 to +125 ?0 to +100 ?0 to +125 36 100 symbol v in v b v c i o p d *1 t j t op t stg (j-l) (j-a) *1 pa r ameter dc input voltage dc bias voltage output control terminal voltage dc output current po w er dissipation j unction temperature operating ambient temperature storage temperature thermal resistance (junction to lead (pin 8)) thermal resistance (junction to ambient air) *1: when mounted on glass-epoxy board of 40 40mm (copper laminate area 100%). (t a =25 c) features ? ow input voltage (1.3v) and low output v oltage (1.0v) compact surface-mount package (sop8) ? ow dropout voltage: v dif 0.3v (at i o = 1.5a) built-in overcurrent, input-overvoltage and thermal protection circuits built-in on/off function (off state circuit current: 1 a max.) compatible with low esr capacitors pa r ameter input voltage bias voltage output current operating ambient temperature symbol v in v b i o t op ratings si-3010llsl 1.4 to 3.6 *1 3.3 to 5.5 0 to 1.5 *1 ?0 to +85 *1 unit v v a c *1: v in (max) and i o (max) are restricted by the relation p d = (v in - v o ) i o . recommended operating conditions unit v mv mv v a a mv/ c a v v a a pa r ameter reference voltage line regulation load regulation dropout voltage quiescent circuit current circuit current at output off te mperature coefficient of output voltage overcurrent protection starting current *1 control voltage (output on) *2 control voltage (output off) v c control current (output on) te r m inal control current (output off) symbol v adj conditions ? v oline conditions ? v oload conditions v dif conditions i q conditions i q (off) conditions ? v o / ? t a conditions i s1 conditions v c , ih v c , il i c , ih conditions i c , il conditions electrical characteristics (t a =25 c, v c =2v, v in =1.8v, v b =3.3v, v o =1.5v unless otherwise specified) *1: i s1 is specified at the 5% drop point of output voltage v o on the condition that v in = overcurrent protection starting current, i o = 10 ma. *2: output is off when the output control terminal (v c terminal) is open. each input level is equivalent to ls-ttl level. therefore, the device can be driven directly by ls-ttls. ratings si-3010llsl min. typ. max. 0.980 1.000 1.020 i o =10ma 10 v in =1.7 to 2.5v, i o =10ma 30 v in =1.8v, i o =0 to 1.5a 0.3 i o =1.0a 500 800 i o =0a, r 2 =10k ? 1 v c =0v 0.2 t j =0 to 100 c 1.6 v in =1.8v, v b =3.3v 2 0.8 50 v c =2.7v 10 v c =0.4v surface-mount, low current consumption, low dropout voltage linear regulator ics SI-3000LLSL series applications on-board local power supply ? or stabilization of the secondary-side output voltage of switching power supplies
25 ics SI-3000LLSL series external dimensions (sop8) (unit : mm) 0.995max. 0.10 1.27 0.4 0.1 0.4 0.1 0.15 +0.1 5.1 0.4 1.27 8765 1234 4.4 0.2 1.5 0.1 1.55 0.15 0.05 0.05 0 to 10 0.5 0.1 6.2 0.3 ?.05 0.12 m pin assignment q v o w adj e v b r v c t gnd y gnd u v in i v in plastic mold package type flammability: ul94v-0 product mass: approx. 0.1g t ypical connection diagram/block diagram reference data c in , c b : input and bias capacitors (approx. 0.1 to 10 f) required when the input line contains inductance or when the wiring is long. c o : output capacitor (47 f or larger) si-3010llsl is designed to use a low esr capacitor (such as a ceramic capacitor) for the output capacitor. the recom- mended esr value for an output capacitor is 500m ? or less (at room temperature). r1, r2: output voltage setting resistors the output voltage can be set by connecting r1 and r2 as shown at left. the recommended value for r2 is 10k ? . r1= (v o ? adj ) / (v adj /r2) c ss : soft start capacitor the rising time of the output voltage can be set by connecting c ss between v out and adj. 10 100 1000 copper laminate area (mm 2 ) 0 0.2 0.4 0.6 0.8 1 1.2 pd (w) t a=25 c t a=50 c t a=80 c ref tsd drive v in c in v b v c on/off open:off low: off high: on v out c ss c o r1 r2 adj gnd 1 - + - + + - + + c b r1 7 8 3 2 6 5 4 ocp ocp(2) amp1 copper laminate area - power dissipation
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