Datasheet

LT3692
29
3692fa
For more information www.linear.com/3692
Typical applicaTions
3.3V and 1.8V 2-Stage Dual Step-Down Multi-Frequency Converter
BST1
SW1
V
OUT1
CMPI1
CMPO1
SS1
ILIM1
V
C1
RT/SYNC
DIV
FB1
IND1
SW2
V
OUT2
CMPI2
CMPO2
SS2
ILIM2
V
C2
CLKOUT
T
J
FB2
IND2
0.47µF
4.7µF
1µF
100µF
24.9k100pF
0.1µF
470pF
33pF
330pF
33pF
0.1µF
8.06k
8.06k
47.5k 100k16.5k
0.1µF
3692 TA02
36.5k
49.9k
40.2k120k
V
IN
5V TO 36V
V
OUT1
3.3V 2.5A
400kHz
8.2µH
BST2
SHDN1 SHDN2
V
IN1
LT3692
GND
V
IN2
0.22µF
100pF
47µF
100k
10k
V
OUT2
1.8V 1A
1600kHz
PG
1µH
CLOCKOUT
1600kHz
12V to 3.3V and 2.5V Converter with Start-Up Current Limiting
BST1
SW1
V
OUT1
CMPI1
CMPO1
SS1
ILIM1
V
C1
RT/SYNC
DIV
FB1
IND1
SW2
V
OUT2
CMPI2
CMPO2
SS2
ILIM2
V
C2
CLKOUT
T
J
FB2
IND2
0.22µF
4.7µF
4.7µF
47µF
16.9k100pF
0.1µF
33pF
0.1µF
330pF
330pF
0.1µF
8.06k
8.06k
100pF 47µF
28.0k21.0k
120k
33pF
3692 TA04
0.1µF
0.1µF
24.9k
120k
49.9k
CLOCKOUT
1MHz
V
IN
12V
V
OUT1
2.5V 3A
1MHz
2.2µH
BST2
SHDN1 SHDN2
V
IN1
LT3692
GND
V
IN2
0.22µF
24.9k
V
OUT2
3.3V 3A
1MHz
2.2µH