20
LT3503
3503f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
PART NUMBER DESCRIPTION COMMENTS
LT1766 60V, 1.2A I
OUT
, 200kHz, High Efficiency Step-Down V
IN
: 5.5V to 60V, V
OUT(MIN)
= 1.2V, I
Q
= 2.5mA, I
SD
= 25µA,
DC/DC Converter TSSOP16/TSSOP16E Packages
LT1767 25V, 1.2A I
OUT
, 1.25MHz, High Efficiency Step-Down V
IN
: 3V to 25V, V
OUT(MIN)
= 1.20V, I
Q
= 1mA, I
SD
< 6µA,
DC/DC Converter MS8E Package
LT1933 500mA I
OUT
, 500kHz, Step-Down Switching Regulator V
IN
: 3.6V to 36V, V
OUT(MIN)
= 1.25V, I
Q
= 1.6mA, I
SD
< 1µA,
in SOT-23 ThinSOT
TM
Package
LT1936 36V, 1.4A I
OUT
, 500kHz, High Efficiency Step-Down V
IN
: 3.6V to 36V, V
OUT(MIN)
= 1.20V, I
Q
= 1.9mA, I
SD
< 1µA,
DC/DC Converter MS8E Package
LT1940 Dual 25V, Dual 1.4A I
OUT
, 1.1MHz, High Efficiency Step-Down V
IN
: 3.6V to 25V, V
OUT(MIN)
= 1.25V, I
Q
= 3.5mA, I
SD
= <30µA,
DC/DC Converter TSSOP16E Package
LT1976/LT1977 60V, 1.2A I
OUT
, 200kHz/500kHz, High Efficiency Step-Down V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
< 1µA,
DC/DC Converter with Burst Mode
®
Operation TSSOP16E Package
LT3434/LT3435 60V, 2.4A I
OUT
, 200kHz/500kHz, High Efficiency Step-Down V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
< 1µA,
DC/DC Converter with Burst Mode Operation TSSOP16E Package
LT3437 60V, 400mA I
OUT
, Micropower Step-Down DC/DC Converter V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
< 1µA,
with Burst Mode Operation 3mm × 3mm DFN10 and TSSOP16E Packages
LT3481 34V, 2A I
OUT
, 2.8MHz Micropower Step-Down DC/DC Converter V
IN
: 3.3V to 34V, V
OUT(MIN)
= 1.265V, I
Q
= 50µA, I
SD
< 1µA,
with I
Q
= 50µA 3mm × 3mm DFN10 and MS10E Packages
LT3493 36V, 1.2A I
OUT
, 750kHz High Efficiency DC/DC Converter V
IN
: 3.6V to 36V, V
OUT(MIN)
= 0.78V, I
Q
= 1.9mA, I
SD
< 2µA,
2mm × 3mm DFN8 Package
LT3505 36V, 1.2A I
OUT
, 750kHz High Efficiency Step-Down V
IN
: 3.6V to 36V, V
OUT(MIN)
= 0.78V, I
Q
= 1.9mA, I
SD
< 2µA,
DC/DC Converter 3mm × 3mm DFN8 and MS8E Packages
LT3506/LT3506A Dual 25V, 1.6A I
OUT
, 575kHz/1.1MHz High Efficiency V
IN
: 3.6V to 25V, V
OUT(MIN)
= 0.8V, I
Q
= 3.8mA, I
SD
< 30µA,
Step-Down DC/DC Converter 5mm × 4mm DFN16 Package
Burst Mode is a registered trademark of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation.
RELATED PARTS
LT 1006 • PRINTED IN USA
TYPICAL APPLICATIO
U
5V Step-Down Converter
V
IN
6.7V TO 18V
20V MAX
0.1µF
3.3µH
1N4148
MBRM140
61.9k
10µF
3503 TA05
1µF
11.3k
V
OUT
5V
1A, V
IN
> 7.2V
1.2A, V
IN
> 11V
V
IN
BOOST
GND FB
SHDN
SW
LT3503
ON OFF
120pF
