LT3755-1 LINER [Linear Technology], LT3755-1 Datasheet - Page 26

• Manufacturer Part Number: LT3755-1
• Description: 60V 4-Switch Synchronous
• Manufacturer: LINER [Linear Technology]

LT3791
TYPICAL APPLICATIONS
26
3V TO 55V
866k
576k
R1
R2
V
IN
100
98
96
94
92
90
88
86
80
84
82
0
BOOST
R3
1M
R4
57.6k
D6
D5
C8
0.1µF
10
BUCK-BOOST
1µF
C3
Efficiency vs V
INPUT VOLTAGE (V)
R
100k
20
R10
200k
FAULT
10nF
C
SS
BUCK
SHORTLED
OPENLED
V
IVINN
IVINP
TEST1
IVINMON
ISMON
CLKOUT
EN/UVLO
OVLO
PWM
V
CTRL
30
SS
IN
REF
98% Efficient 60W (12V 5A) Voltage Regulator Runs Down to 3V V
SYNC
40
IN
VC
I
OUT
R
2.2k
50
C
C
22nF
3791 TA03b
C
= 5A
LT3791
RT
60
R8
86.6k
300kHz
SGND PWMOUT
INTV
TEST2
SNSN
PGND
SNSP
BST2
BST1
SW2
TG1
SWI
BG1
BG2
TG2
ISN
ISP
FB
CC
D1, D2: NXP BAT46WJ
D3: IRF 10BQ060
D4: IRF 10BQ040
D5, D6: DIODES INC. BAT46W
L1: WURTH ELEKTRONIK WE-HCI 7443556680
M1, M2: RENASAS RJK0651DPB 60V
M3, M4: VISHAY SiR424DP 40V
M1
M2
L1 6.8µH
R
0.004
D1
D3
C1
0.1µF
SENSE
0.1µF
D2
C2
6
5
1
0
4
3
2
3
Maximum Output Current vs V
4
5
D4
C
4.7µF
6
M3
DS
M4
VCC
INPUT VOLTAGE (V)
7
DS
8
IN
9
10
20
30
+
R5
732k
R6
80.6k
C
4.7µF
100V
×4
40
IN
3791 TA03c
C
10µF
25V
×3
C
100µF
25V
50 60
OUT
OUT2
IN
0.015
R
3791 TA03a
OUT
V
12V
5A
OUT
3791f