Datasheet

LTC3127
16
3127f
Typical applicaTions
USB (500mA Max), 3.8V GSM Pulsed Load
V
IN
USB
V
OUT
3.8V
ONOFF
BURSTPWM
32.4k
L1
4.7µH
2.15M
1M
C1
2.2mF
C2
2.2mF
10µF
3127 TA02
SW2SW1
V
OUT
V
IN
FB
PGNDSGND
PROG
MODE
SHDN
LTC3127
C1, C2: VISHAY TANTAMOUNT
TANTALUM, LOW ESR CAPACITORS
L1: COILCRAFT XPL4020-472ML
499k
V
C
100pF
V
IN
3.3V OR
5V
V
OUT
3.8V
ONOFF
32.4k
10µF
L1
4.7µH
2.15M
1M
C3
2.2mF
C2
2.2mF
C1
2.2mF
3127 TA03
SW2SW1
V
OUT
V
IN
FB
PGNDSGND
PROG
SHDN
LTC3127
C1, C2, C3: VISHAY TANTAMOUNT
TANTALUM, LOW ESR CAPACITORS
L1: COILCRAFT XPL4020-472ML
BURSTPWM
MODE
499k
V
C
100pF
PCMCIA/Compact Flash (3.3V or 5V/500mA Max), 3.8V GPRS, Class 10 Pulsed Load