LTC3426 Datasheet, PDF (8/12 Pages) Linear Technology – 1.2MHz Step-Up DC/DC Converter in SOT-23

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