Datasheet

LT3690
27
3690fa
Typical applicaTions
1.2V Step-Down Converter
5V Step-Down Converter with Undervoltage Lockout
3690 TA06
LT3690
GND
2.2nF
V
IN
BIAS
UVLO
EN
SS
V
C
V
CCINT
SYNC
PG
BST
SW
FB
RT
2×
10µF
V
IN
3.9V TO 36V
AUXILIARY SUPPLY
3.3V OR 5V
0.47µF
ƒ = 170kHz
14k
140k
100µF
680µF
LOW ESR
V
OUT
1.2V
4A
POWER GOOD
10nF
46.4k
23.2k
L
8.2µH
0.68µF
1µF
ON OFF
100k
+
3690 TA07
LT3690
GND
1nF
SLEEP: V
IN
< 12.3V
WAKE UP: V
IN
> 13.4V
V
IN
BIAS
UVLO
EN
SS
V
C
V
CCINT
SYNC
PG
BST
SW
FB
RT
10µF
V
IN
14V TO 36V
0.47µF
ƒ = 500kHz
15k
40.2k
100µF
V
OUT
5V
4A
1nF
200k
21k
102k
536k
L
4.7µH
0.68µF
ON OFF