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| LTC3564_15 Datasheet, PDF (17/20 Pages) Linear Technology – 2.25MHz, 1.25A Synchronous Step-Down Regulator | |||
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TYPICAL APPLICATIO S
Single Li-Ion 1.5V/1.25A Regulator for High Efficiency and Low Profile, <1mm Height
LTC3564
VIN
2.7V
TO 5.5V
CIN**
10μF
CER
4
VIN
3
SW
LTC3564
1
RUN
5
VFB
GND
2
0.9μH*
22pF
604k
402k
3564 TA03a
VOUT
1.5V
COUT**
10μFÃ2
CER
*FDK MIPW3226D0R9M
**TAIYO YUDEN JMK107BJ106MA
100
90
80
70
60
50
40
30
20
10
0 VOUT = 1.5V
0.1
1
10
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
100 1000 10000
OUTPUT CURRENT (mA)
3564 TA03b
VOUT
100mV/DIV
AC COUPLED
IL
1A/DIV
ILOAD
1A/DIV
VIN = 3.6V
20μs/DIV
VOUT = 1.5V
ILOAD = 0.3A TO 1.25A
3564 TA04c
3564f
17
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