LT3791
28
3791fb
For more information www.linear.com/LT3791
LINEAR TECHNOLOGY CORPORATION 2012
LT 1213 REV B • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LT3791
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LT C
®
3780 High Efficiency, Synchronous, 4-Switch Buck-Boost
Controller
V
IN
: 4V to 36V, V
OUT
Range: 0.8V to 30V, I
SD
< 55µA, SSOP-24, QFN-32
Packages
LTC3789 High Efficiency, Synchronous, 4-Switch Buck-Boost
Controller
V
IN
: 4V to 38V, V
OUT
Range: 0.8V to 38V, I
SD
< 40µA, 4mm × 5mm QFN-28,
SSOP-28 Packages
LT3755/LT3755-1
LT3755-2
High Side 60V, 1MHz LED Controller with T
rue Color
3000:1 PWM Dimming
V
IN
: 4.5V to 40V, V
OUT
Range: 5V to 60V, 3000:1 True Color PWM, Analog,
I
SD
< 1µA, 3mm × 3mm QFN-16, MSOP-16E Packages
LT3756/LT3756-1
LT3756-2
High Side 100V, 1MHz LED Controller with T
rue Color
3000:1 PWM Dimming
V
IN
: 6V to 100V, V
OUT
Range: 5V to 100V, 3000:1 True Color PWM, Analog,
I
SD
< 1µA, 3mm × 3mm QFN-16, MSOP-16E Packages
LT3596 60V, 300mA Step-Down LED Driver V
IN
: 6V to 60V, V
OUT
Range: 5V to 55V, 10000:1 True Color PWM, Analog,
I
SD
< 1µA, 5mm × 8mm QFN-52 Package
LT3743 Synchronous Step-Down 20A LED Driver with
Thee-State LED Current Control
V
IN
: 5.5V to 36V, V
OUT
Range: 5.5V to 35V, 3000:1 True Color PWM, Analog,
I
SD
< 1µA, 4mm × 5mm QFN-28, TSSOP-28E Packages
98.5% Efficient 100W (33.3V 3A) Buck-Boost LED Driver
R7
50Ω
C7
470nF
V
IN
15V TO 58V
INTV
CC
TG1
BG1
SNSP
SNSN
PGND
BST1
BST2
BG2
SW2
TG2
RT
LT3791
SWI
SHORTLED
OPENLED
IVINN
IVINP
INTV
CC
V
IN
PWM
IVINMON
ISMON
CLKOUT
EN/UVLO
OVLO
V
REF
CTRL
R8
86.6k
300kHz
V
C
SYNCSS SGND
PWMOUT
C8
0.1µF
3791 TA03
C
IN
2.2µF
100V
×5
ISP
ISN
FB
R
LED
0.033Ω
L1
10µH
3A, 100W
LED POWER
R5
1M
M1
D1 D2
M2
M5
M4
M3
R6
34.2k
R1
499k
R2
15.8k
R3
28k
R
IN
0.003Ω
R9
200k
R10
200k
C
C
22nF
C
SS
10nF
C3
1µF
C1
0.1µF
C2
0.1µF
C
VCC
4.7µF
R
SENSE
0.004Ω
C
OUT
4.7µF
50V
×5
D1, D2: NXP BAT46WJ
L1: COOPER HC9-100-R 10µH
M1, M2: RENESAS RJK0651DPB 60V
DS
M3, M4: RENESAS RJK0451DPB 40V
DS
M5: VISHAY SI2318CDS 40V
DS
