Datasheet

LTC3441
14
3441fa
TYPICAL APPLICATIO S
U
Li-Ion to 5V at 600mA Boost Converter with Output Disconnect
Efficiency
SW1
PV
IN
V
IN
SHDN/SS
MODE/SYNC
PGND
5
8
12
11
2
6
4
9
10
1
7
3
SW2
V
OUT
FB
V
C
GND
PGND
LTC3441
C1
10μF
0.047μF
*1 = Burst Mode OPERATION
0 = FIXED FREQUENCY
C1: TAIYO YUDEN JMK212BJ106MG
C2: TAIYO YUDEN JMK325BJ226MM
D1: MBRM120LT3
L1: TOKO A916CY-4R7M
2.5V TO 4.2V
Li-Ion
*
R3 15k
R1
619k
C
OUT
22μF
V
OUT
5V
600mA
R2
200k
C4 1.5nF
3441 TA04a
L1
4.7μH
D1
1M
OUTPUT CURRENT (mA)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
0.1 10 100 1000
3441 TA04b
0
1
Burst Mode
OPERATION
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6 V