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| LTC3405A-1.5 Datasheet, PDF (13/16 Pages) Linear Technology – 1.5V, 1.8V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT | |||
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LTC3405A-1.5/LTC3405A-1.8
TYPICAL APPLICATIO S
Single Li-Ion to 1.5V/300mA Regulator
for High Efficiency and Small Footprint
VIN
2.7V
TO 4.2V
CIN**
4.7µF
CER
4
VIN
3
SW
LTC3405A-1.5
1
RUN
6
5
MODE VOUT
4.7µH*
VOUT
1.5V
COUT1**
4.7µF
CER
GND
2
3405A1518 TA02a
*MURATA LQH32CN4R7M33
**TAIYO YUDEN CERAMIC JMK212BJ475MG
100
90
60
70
60
50
40
30
0.1
VIN = 2.7V
VIN = 4.2V
VIN = 3.6V
1
10
100
OUTPUT CURRENT (mA)
1000
3405A1518 TA02b
VOUT
100mV/DIV
AC COUPLED
IL
200mA/DIV
IL
200mA/DIV
VIN = 3.6V
20µs/DIV
VOUT = 1.5V
ILOAD = 100mA TO 300mA
3405A1518 TA02c
sn3405a1518 3405a1518fs
13
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