Datasheet

LT3740
20
3740fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 0908 REV C • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LTC1778 No R
SENSE
, Step-Down Synchronous DC/DC Controller V
IN
: 4V to 36V, Fast Transient Responds, Current Mode,
I
OUT
≤ 20A
LTC1876 2-Phase, Dual Synchronous Step-Down Switching Controller Current Mode; 20A per Channel
LT3430/LT3431 Monolithic 3A, 200kHz/500kHz Step-Down Switching Regulator V
IN
: 5.5V to 60V, 0.1Ω Saturation Switch, 16-Lead SSOP Package
LTC3708 No R
SENSE
, Dual, 2-Phase, Synchronous DC/DC Controller V
IN
: 4V to 36V, Current Mode, Up/Down Tracking, Synchronizable
LTC3728L Dual, 2-Phase Synchronous Step-Down Controller V
IN
: 4V to 36V, 550kHz, PLL: 250kHz to 550kHz
LTC3778 Wide Operating Range, No R
SENSE
Step-Down Controller Single Channel, Separate V
ON
Programming
LTC3824 High Voltage, Wide Input Range, Step-Down Controller With Low I
Q
V
IN
: 4V to 60V, I
Q
= 40µA, 100% Duty Cycle, 2A P-Channel Gate
Drive, 10-Pin MSOP
High Effi ciency Step-Down Converter
SWB
V
IN
SHDN
XREF
RANGE
V
C
BGDP
BIAS
TGATE
SW
SN
+
BGATE
GND
LT3740
SN
–
PGND
FB
3740 TA04
3.4µH
1µF
0.47µF
V
OUT
3.3V
10A
V
IN
7V to 20V
M1
HAT2168H
M2
HAT2165H
100µF
s 3
20µF
22pF
22µH
16k
15k
10k
1500pF
22pF
80.6k
255k
2k
1Ω
1Ω
D1
B340A
1Ω