LT3581 LINER [Linear Technology], LT3581 Datasheet - Page 33

• Manufacturer Part Number: LT3581
• Description: 3.3A Boost/Inverting DC/DC Converter with Fault Protection
• Manufacturer: LINER [Linear Technology]

Typical applicaTions
3V TO 16V
22µF
V
IN
C1
700kHz, 5V SEPIC Can Accept Input Voltages from 3V to 16V
C1: 22µF , 25V, X7R, 1210
C2: 1µF , 50V, X7R, 1206
C3: 22µF , 16V, X7R, 1210
D1: DIODES INC. B230LA
L1, L2: COILCRAFT MSD7342-332MLB
124k
100k
3.3µH
L1
V
SHDN
FAULT
RT
SYNC
IN
SW1
LT3581
GND
CLKOUT
SW2
GATE
SS
FB
V
C
1µF
C2
100pF
•
L2
3.3µH
1µF
45.3k
D1
7.87k
2.2nF
3581 TA10a
C3
22µF
V
5V
0.9A (V
1.5A (12V ≤ V
2
OUT
IN
= 3V)
IN
≤ 16V)
90
85
80
75
70
65
60
55
50
0
V
IN
= 3.3V
400
LOAD CURRENT (mA)
V
Efficiency
IN
= 16V
800
V
IN
LT3581
= 12V
1200
3581 TA10b

1600
3581f