Datasheet

LT3641
23
3641fa
TYPICAL APPLICATIONS
2MHz 3.3V/1.3A and 1.8V/1A Buck Regulators
3641 TA02
SYNC
D1
WDE
PGOOD2
1nF
1nF
1.5nF
1.5nF
32.4k
V
OUT2
1.8V/1.1A
V
OUT1
3.3V/1.3A
V
IN2
2.5V TO 5.5V
22μF
4.7μF
RST1
RST2
EN2
WDO
WDI
L1: VISHAY IHLP2020BZER3R3M01
L2: VISHAY IHLP1616ABER1R0M01
D1: DIODES PDS360
D2: CENTRAL SEMI CMDSH-4E
* RESTRICTIONS APPLY FOR INPUT VOLTAGES ABOVE 42V
FB2
CWDT CPOR RT GND SS2 SS1
SW2
SW1EN/UVLO V
IN
V
IN
5V TO 42V*
SW
LT3641
BST
V
IN2
FB1
L2
1μH
301k
100k
49.9k
100k
80.6k
49.9k
L1
3.3μH
D2
0.22μF
DA
4.7μF
22μF
3641 TA03
SYNC
D1
WDIWDI
WDE
PGOOD2
1nF
1nF
1.5nF
1.5nF
32.4k
V
OUT2
1.2V/1A
V
OUT1
5V/0.8A
22μF
4.7μF
RST1
RST2
EN2
WDO
FB2
CWDT CPOR RT GND SS2 SS1
SW2
SW1EN/UVLO V
IN
V
IN
7V TO 42V*
SW
LT3641
BST
V
IN2
FB1
L2
0.47μH
453k
100k
100k
OUT1
49.9k
49.9k
301k
100k
L1
4.7μH
0.22μF D2
DA
22μF
100k
100k
100k
L1: VISHAY IHLP2020BZER4R7M01
L2: VISHAY IHLP1616ABERR47M01
D1: DIODES DFLS260
D2: CENTRAL SEMI CMDD6263
* RESTRICTIONS APPLY FOR INPUT VOLTAGES ABOVE 42V
2MHz 5V/0.8A and 1.2V/1A Buck Regulators