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| LTC3564_15 Datasheet, PDF (16/20 Pages) Linear Technology – 2.25MHz, 1.25A Synchronous Step-Down Regulator | |||
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LTC3564
TYPICAL APPLICATIO S
Single Li-Ion 1.8V/1.25A Regulator for High Efficiency and Small Footprint
VIN
2.7V
TO 5.5V
CIN**
10μF
CER
4
VIN
3
SW
LTC3564
1
RUN
5
VFB
GND
2
1μH*
22pF
VOUT
1.8V
COUTâ
22μF
CER
806k
402k *MURATA LQH32CN2R2M33
** TAIYO YUDEN JMK316BJ106ML
3564 TA02a â TAIYO YUDEN JMK316BJ226ML-BR
100
90
80
70
60
50
40
30
20
10
0 VOUT = 1.8V
0.1
1
10
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
100 1000 10000
OUTPUT CURRENT (mA)
3564 TA02b
VOUT
100mV/DIV
AC COUPLED
IL
1A/DIV
ILOAD
1A/DIV
VIN = 3.6V
20μs/DIV
VOUT = 1.8V
ILOAD = 100mA TO 1.25A
3564 TA02c
3564f
16
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