Datasheet

8
LTC3426
3426fa
TYPICAL APPLICATIO S
U
SW
V
IN
2.5V
V
IN
LTC3426
SHDN
V
OUT
3.3V
800mA
3426 TA05a
V
OUT
FBOFF ON
GND
L1
2.5µH
D1
C2
22µF
C1
10µF
R1
75k
1%
R2
44.2k
1%
C1: TDK C1608X5R0J106
C2: TAIYO YUDEN JMK316BJ266
D1: ON SEMICONDUCTOR MBRM120LT3
L1: SUMIDA CDRH5D28-2R5 2
Efficiency
SW
V
IN
3V TO 4.2V
V
IN
LTC3426
SHDN
V
OUT
5V
750mA AT 3V
3426 TA04a
V
OUT
FBOFF ON
GND
L1
2.2µH
D1
C2
22µF
C1
10µF
R1
95.3k
1%
R2
30.9k
1%
C1: TDK C1608X5R0J475M
C2: TAIYO YUDEN JMK316BJ226ML
D1: ON SEMICONDUCTOR MBR120VLSFT1
L1: SUMIDA CDRH4D28-2R2 2
Efficiency
LOAD CURRENT (mA)
1
70
EFFICIENCY (%)
75
80
85
90
10 100 1000
3426 TA04b
65
60
55
50
95
100
V
IN
= 4.2V
V
IN
= 3V
LOAD CURRENT (mA)
1
50
EFFICIENCY (%)
80
90
100
10 100 1000
3426 TA05b
70
60