LTC3814-5_15 Datasheet, PDF (30/30 Pages) Linear Technology – 60V Current Mode Synchronous Step-Up Controller

LTC3814-5
TYPICAL APPLICATION
24V Input Voltage to 50V/5A
PGOOD
V_IN
V_OUT
143k
R_OFF
806k
150k
C_OFF
100pF
10k
100k
C_SS
1000pF
R_FB2
499Ω
C_C2
330pF
R_C
300k
C_C1
150pF
1 _IOFF
BOOST ¹⁶
2
LTC3814-5
15
3
V_OFF
V_RNG
4
5
6
PGOOD
I_TH
V_FB
TG
SW ¹⁴
13
PGND
12
BG
7
11
RUN/SS
INTV_CC
8
10
SGND
EXTV_CC
9
NDRV
SGND
R_FB1
30.9k
R_NDRV
100k
C_B
0.1μF
D_B
BAS19
M3
ZXMN10A07F
C_IN1
68μF
50V
L1
10μH
V_IN
12V* TO 40V
C_IN2
1μF
50V
PGND
M1
Si7850DP
C_DRVCC
0.1μF
M2
Si7850DP
D1
B1100
C_OUT1
220μF
63V
×2
V_OUT
50V
5A
C_OUT2
10μF
100V
×2
C_VCC
1μF
PGND
38145 TA02
*I_OUT(MAX) = 2A AT V_IN = 12V
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC3786
Low I_Q Synchronous Boost Controller
2.5V ≤ V_IN ≤ 38V, V_OUT up to 60V, Fixed Operating Frequency 50kHz to
900kHz, MSOP-16E, 3mm × 3mm QFN-16
LTC3787
2-Phase, Single Output Synchronous Step-Up
Controller
2.5V ≤ V_IN ≤ 38V, V_OUT up to 60V, 50kHz to 900kHz, SSOP-28,
4mm × 5mm QFN-28
LTC3788/LTC3788-1 2-Phase, Dual Output Synchronous Step-Up Controller 2.5V ≤ V_IN ≤ 38V, V_OUT up to 60V, 50kHz to 900kHz, SSOP-28
LTC3862/LTC3862-1
LTC3813
2-Phase Current Mode Step-Up DC/DC Controller
100V Maximum V_OUT Synchronous Step-Up DC/DC
Controller
4V ≤ V_IN ≤ 36V, 5V or 10V Gate Drive, 75kHz to 500kHz
No R_SENSE, Large 1Ω Gate Driver, Adjustable Off-Time, SSOP-28
LTC1871, LTC1871-1, Wide Input Range, No R_SENSE Low Quiescent Current Adjustable Switching Frequency, 2.5V ≤ V_IN ≤ 36V, Burst Mode Operation
LTC1871-7
Flyback, Boost and SEPIC Controller
at Light Load, MSOP-10
LT3757
Boost, Flyback, SEPIC and Inverting Controller
2.9V ≤ V_IN ≤ 40V, 100kHz to 1MHz Programmable Operation Frequency,
3mm × 3mm DFN-10 and MSOP-10E
LT3758
Boost, Flyback, SEPIC and Inverting Controller
5.5V ≤ V_IN ≤ 100V, 100kHz to 1MHz Programmable Operation Frequency,
3mm × 3mm DFN-10 and MSOP-10E
30 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
38145fc
LT 0111 REV C • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2007