Datasheet
LTC3813
32
3813fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2007
LT 0408 REV B • PRINTED IN USA
24V Input Voltage to 50V/5A Synchronized at 250kHz
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LTC1624 Current Mode DC/DC Controller SO-8; 300kHz Operating Frequency; Buck, Boost, SEPIC Design;
V
IN
Up to 36V
LTC1700 No R
SENSE
™ Synchronous Step-Up Controller Up to 95% Effi ciency, Operating as Low as 0.9V Input
LTC1871/LTC1871-7 No R
SENSE
, Wide Input Range DC/DC Boost Controller No R
SENSE
, Current Mode Control, 2.5V ≤ V
IN
≤ 36V
LTC1872/LTC1872B SOT-23 Boost Controller Delivers Up to 5A, 550kHz Fixed Frequency, Current Mode
LT1930 1.2MHz, SOT-23 Boost Converter Up to 34V Output, 2.6V V
IN
16V, Miniature Design
LT1931 Inverting 1.2MHz, SOT-23 Converter Positive-to Negative DC/DC Conversion, Miniature Design
LTC3401/LTC3402 1A/2A 3MHz Synchronous Boost Converters Up to 97% Effi ciency, Very Small Solution, 0.5V ≤ V
IN
≤ 5V
LTC3703/LTC3703-5 100V Synchronous Controller Step-Up or Step Down, 600kHz, SSOP-16, SSOP-28
LTC3704 Positive-to Negative DC/DC Controller No R
SENSE
, Current Mode Control, 50kHz to 1MHz
LT3782 2-Phase Step-Up DC/DC Controller High Power Boost with Programmable Frequency, 150kHz to 500kHz,
6V ≤ V
IN
≤ 40V
LTC3803/LTC3803-5 200kHz Flyback DC/DC Controller Optimized for Driving 6V MOSFETs ThinSOT
LTC3814-5 60V Current Mode Synchronous Step-Up Controller Large 1Ω Gate Drivers, No Current Sense Resistor Required
LTC3872 No R
SENSE
Current Mode Boost DC/DC Controller 550kHz Fixed Frequency, 2.75V ≤ V
IN
≤ 9.8V
LTC3873 No R
SENSE
Constant-Frequency Boost/Flyback/SEPIC
Controller
V
IN
and V
OUT
Limited Only by External Components
No R
SENSE
is a trademark of Linear Technology Corporation.
PGOOD
SYNC
PGOOD
250kHz
CLOCK
V
OFF
V
RNG
I
TH
SGND
U
VIN
SHDN
V
FB
SGND PGND
PGND
SS
I
OFF
PLL/LPF
C
OFF
100pF
C
SS
1000pF
V
IN
12V TO 40V
V
OUT
50V
5A
V
OUT
M3
ZXMN10A07F
C
C2
330pF
R
C
300k
R
FB2
499Ω
R
FB1
30.9k
LTC3813
EXTV
CC
TG
SENSE
–
BG
BGRTN
DRV
CC
INTV
CC
NDRV
BOOST
3813 TA02
C
B
, 0.1μF
0.01μF
10k
10k
C
DRVCC
0.1μF
C
VCC
1μF
R
UV2
10k
R
UV1
140k
R
OFF
806k
143k
R
NDRV
100k
DB
BAS19
M2
Si7850
2x
C
OUT1
220μF
63V
2x
C
OUT2
10μF
100V
2x
SHDN
1
4
5
6
7
8
9
10
11
12
13
14
28
27
21
20
19
18
17
16
15
C
C1
150pF
C
IN1
68μF
50V
C
IN2
1μF
50V
SW
SENSE
+
26
25
M1
Si7850DP
L1
10μH
D1
B1100
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