Datasheet

LT3460/LT3460-1
8
3460fb
TYPICAL APPLICATIONS
Load Step Response
Input Current and Output Voltage
5V to 12V with Soft-Start Circuit
100μs/DIV
3460 TA01b
58mA
34mA
V
OUT
100mV/DIV
I
LOAD
V
IN
5V
V
OUT
12V
70mA
L1
22μH
D1
130k
47k
CONTROL
SIGNAL
15k
C2
F
16V
22pF
47nF
C1
4.7μF
V
IN
SW
FB
SHDN
GND
LT3460
3460 TA02
C1: TAIYO YUDEN X5R JMK212BJ475
C2: TAIYO YUDEN X5R EMK212BJ105
D1: CENTRAL SEMICONDUCTOR CMDSH2-3
L1: MURATA LQH32CN-220 OR EQUIVALENT
500μs/DIV
3460 TA02b
CONTROL
SIGNAL
2V/DIV
I
IN
100mA/DIV
V
0
5V/DIV
5V to 12V Step-Up Converter Effi ciency
V
IN
3.3V
L1
22μH
D1
130k
15k
C2
F
16V
22pF
C1
4.7μF
V
IN
SW
FB
SHDN
GND
LT3460
3460 TA03
C1: TAIYO YUDEN X5R JMK212BJ475
C2: TAIYO YUDEN X5R EMK212BJ105
D1: CENTRAL SEMICONDUCTOR CMDSH2-3
L1: MURATA LQH32CN-220 OR EQUIVALENT
V
OUT
12V
40mA
LOAD CURRENT (mA)
010
20 30 40
EFFICIENCY (%)
3460 TA03a
85
80
75
70
65
60
55