Datasheet

LTC3104
17
3104f
TYPICAL APPLICATIONS
Solar-Powered 2.2V Supply and 1.8V LDO with Li Battery Backup and Run Threshold Set to Battery Minimum Voltage
V
IN
C
BST
22nF
BST
RUN
3.2V RUN
THRESHOLD
SW
RUNLDO
MODE
V
CC
PGOOD
FBLDO
V
INLDO
V
LDO
FB
LTC3104
GND
R3
412k
L1: COILCRAFT LPS4018
L1
15µH
2.2V
1.8V
R2
1.78M
C
FF1
12pF
3104 TA04a
C
OUT
47µF
C
LDO
4.7µF
C1
1µF
C
IN
10µF
R4
825k
R7
1.78M
R1
665k
R6
3.09M
SDM20E40C
R5
715k
C
BULK
100µF
3.6V TADIRAN
AA LITHIUM
BATTERY
4.8V, 0.6W
SOLAR PANEL
MPT4.8-150
(6.5VOC)
+
+
+