Datasheet

LTC3872
22
3872fc
For more information www.linear.com/LTC3872
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
 LINEAR TECHNOLOGY CORPORATION 2007
LT 1113 REV C • PRINTED IN USA
[phone]
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FAX: [phone]
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www.linear.com/LTC3872
relaTeD parTs
PART NUMBER DESCRIPTION COMMENTS
LT
®
1619 Current Mode PWM Controller 300kHz Fixed Frequency, Boost, SEPIC, Flyback Topology
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% Efficiency, Operating as Low as 0.9V Input
LTC1871-7 Wide Input Range Controller No R
SENSE
, 7V Gate Drive, Current Mode Control
LTC1872/LTC1872B SOT-23 Boost Controller Delievers 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% Efficiency, Very Small Solution, 0.5V ≤ V
IN
≤ 5V
LTC3704 Positive-to Negative DC/DC Controller No R
SENSE
, Current Mode Control, 50kHz to 1MHz
LTC1871/LTC1871-7 No R
SENSE
, Wide Input Range DC/DC Boost Controller No R
SENSE
, Current Mode Control, 2.5V ≤ V
IN
≤ 36V
LTC3703/LTC3703-5 100V Synchronous Controller Step-Up or Step Down, 600kHz, SSOP-16, SSOP-28
LTC3803/LTC3803-5 200kHz Flyback DC/DC Controller Optimized for Driving 6V MOSFETs ThinSOT
3.3V Input, 5V/2A Output Boost Converter
Typical applicaTion
I
TH
IPRG
GND
V
FB
V
IN
SW
NGATE
LTC3872
D1
M1
3872 TA02
RUN/SS
17.4k
V
IN
11k
1%
34.8k
1%
C
IN
10µF
C
OUT
100µF
×2
1.8nF
47pF
L1
1µH
V
IN
3.3V
V
OUT
5V
2A
D1: DIODES INC. B320
L1: TOKO FDV0630-1R0
M1: VISHAY Si3460DDV
1 M
1nF