Datasheet Analog Devices LT3470AIDDB#TRMPBF — 数据表

LT3470A
Micropower Buck Regulator
with Integrated Boost and Catch Diodes
FEATURES DESCRIPTION Low Quiescent Current: 35µA at 12VIN to 3.3VOUT
n Integrated Boost and Catch Diodes
n Input Range: 4V to 40V
n 3.3V at 250mA from 4V to 40V Input
n 5V at 250mA from 5.7V to 40V Input
n Low Output Ripple: 3V 10 250
200
–50 –25 0 0
–50 –25 25 50 75 100 125 150
TEMPERATURE (°C) 0 25 50 75 100 125 150
TEMPERATURE (°C) 3470a G04 3470a G05 SHDN Bias Current
vs Temperature BIAS Quiescent Current
(Bias > 3V) vs Temperature
30 9 SHDN CURRENT (µA) BIAS CURRENT (µA) 7 20
15
10 6
5
4
3
2 5 …

LT3470A
Micropower Buck Regulator
with Integrated Boost and
Catch Diodes
DESCRIPTION FEATURES n Low Quiescent Current: 35μA at 12VIN to 3.3VOUT
Integrated Boost and Catch Diodes
Input Range: 4V to 40V
3.3V at 250mA from 4V to 40V Input
5V at 250mA from 5.7V to 40V Input
Low Output Ripple: 3V 10 250
200
–50 –25 0 0
–50 –25 25 50 75 100 125 150
TEMPERATURE (°C) 0 25 50 75 100 125 150
TEMPERATURE (°C) 3470a G04 3470a G05 SHDN Bias Current
vs Temperature BIAS Quiescent Current
(Bias > 3V) vs Temperature
30 9
VSHDN = 36V 8
25
SHDN CURRENT (μA) BIAS CURRENT (μA) 7
20
15 …