1308AI Linear Technology Corporation, 1308AI Datasheet - Page 16

• Manufacturer Part Number: 1308AI
• Description: Lt1308b - Single Cell High Currentmicropower 600khz Boost Dc/dc Converter
• Manufacturer: Linear Technology Corporation

LT1308A/LT1308B
16
TYPICAL APPLICATIO S
V
5V
IN
I
LOAD
C1:TAIYO-YUDEN JMK212BJ475MG
C2, C3:TAIYO-YUDEN LMK325BJ106MN
C4, C5, C6:TAIYO-YUDEN EMK212BJ105MG
D1: MBRM120
D2,D3,D4: BAT54S
L1: TOKO 817FY-4R7M
U
500mV/DIV
500mV/DIV
500mV/DIV
C1
4.7μF
800mA
200mA
AV
V
220k
V
OFF
DD
ON
100pF
TFTLCD Bias Supply Transient Response
3
1
Triple Output TFTLCD Bias Supply
SHDN
V
C
V
IN
6
LT1308B
0.22μF
4.7μH
L1
GND
SW
D2
4
0.22μF
5
FB
100μs/DIV
D1
2
1μF
C4
0.22μF
76.8k
10.7k
D4
D3
1308 TA02
C5
1μF
C6
1μF
C2, C3
10μF
×2
V
–9V
10mA
V
27V
15mA
AV
10V
500mA
OFF
ON
DD
1308abfa