Datasheet

LT3692A
25
3692afc
For more information www.linear.com/3692A
Figure 15. 3.3V and 1.2V Dual Step-Down Multi-Frequency Converter
applicaTions inForMaTion
BST1
SW1
V
OUT1
CMPI1
CMPO1
SS1
ILIM1 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
4.7µF
100µF
×3
4.02k100pF
0.1µF
33pF
820pF
33pF
10nF
8.06k
8.06k
47µF
PG2
15.8k7.50k 61.9k
680pF
0.1µF
3692a F15
13.0k
CLOCKOUT
600kHz
49.9k
V
IN1
5.5V TO 36V
V
OUT1
1.2V
3A
300kHz
4.7µH
BST2
SHDN1 SHDN2
V
IN1
LT3692A
GND
V
IN2
100k
PG1
0.47µF
24.9k
100k
V
OUT2
3.3V
2A
600kHz
4.7µH
Figure 16. 3.3V and 1.2V 2-Stage Dual Step-Down Multi-Frequency Converter
BST1
SW1
V
OUT1
CMPI1
CMPO1
SS1
ILIM1
RT/SYNC
DIV
V
C1
FB1
IND1
SW2
V
OUT2
CMPI2
CMPO2
SS2
ILIM2
CLKOUT
V
C2
T
J
FB2
IND2
3692a F16
BST2
SHDN1 SHDN2
V
IN1
LT3692A
GND
V
IN2
4.7µF
V
IN1
5.5V TO 36V
V
OUT2
1.2V
1A
2.2MHz
V
OUT1
3.3V
2.5A
550kHz
100k
PG
4.7µH 0.5µH
0.22µF
0.1µF
100pF
8.06k
102k13k100k
680pF
33pF
0.1µF
68.1k
220pF
0.1µF
22pF
33.2k40.2k
4.02k
FB1
10nF
CLKOUT
2.2MHz
8.06k
24.9k47µF
47µF