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| LTC3405A-1.5 Datasheet, PDF (14/16 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/150mA Regulator
Using All Ceramic Capacitors Optimized for Smallest Footprint
VIN
2.7V
TO 4.2V
CIN**
2.2µF
CER
4
VIN
3
SW
LTC3405A-1.5
1
RUN
6
5
MODE VOUT
2.2µH*
VOUT
1.5V
COUT1**
2.2µF
CER
GND
2
3405A1518 TA03a
*TAIYO YUDEN LB2012T2R2M
**TAIYO YUDEN CERAMIC LMK212BJ225MG
90
VOUT = 1.5V
VIN = 2.7V
80
VIN = 3.6V
70
VIN = 4.2V
60
50
40
30
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
3405A1518 TA03b
VOUT
100mV/DIV
AC COUPLED
IL
200mA/DIV
IL
100mA/DIV
VIN = 3.6V
20µs/DIV
VOUT = 1.5V
ILOAD = 50mA TO 150mA
3405A1518 TA03c
14
sn3405a1518 3405a1518fs
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