Datasheet

LT3505
24
3505fc
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 0807 REV C • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1766 60V, 1.2A (I
OUT
), 200kHz, High Effi ciency Step-Down
DC/DC Converter
V
IN
: 5.5V to 60V, V
OUT(MIN)
= 1.2V, I
Q
= 2.5mA, I
SD
< 25µA,
TSSOP16/TSSOP16E Packages
LT1767 25V, 1.2A (I
OUT
), 1.25MHz, High Effi ciency Step-Down
DC/DC Converter
V
IN
: 3V to 25V, V
OUT(MIN)
= 1.20V, I
Q
= 1mA, I
SD
< 6µA,
MS8E Package
LT1933 500mA (I
OUT
), 500kHz, Step-Down Switching Regulator in
SOT-23
V
IN
: 3.6V to 36V, V
OUT(MIN)
= 1.25V, I
Q
= 1.6mA, I
SD
< 1µA,
TSSOP16/TSSOP16E Packages
LT1936 36V, 1.4A (I
OUT
), 500kHz, High Effi ciency Step-Down
DC/DC Converter
V
IN
: 3.6V to 36V, V
OUT(MIN)
= 1.20V, I
Q
= 1.9mA, I
SD
< 1µA,
MS8E Package
LT1940 Dual 25V, 1.4A (I
OUT
), 1.1MHz, High Effi ciency Step-Down
DC/DC Converter
V
IN
: 3.6V to 25V, V
OUT(MIN)
= 1.25V, I
Q
= 3.8mA, I
SD
< 30µA,
TSSOP16E Package
LT1976/LT1977 60V, 1.2A (I
OUT
), 200kHz/500kHz, High Effi ciency Step-
Down DC/DC Converters with Burst Mode
®
Operation
V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
< 1µA,
TSSOP16E Package
LT3434/LT3435 60V, 2.4A (I
OUT
), 200kHz/500kHz, High Effi ciency Step-
Down DC/DC Converters with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
< 1µA,
TSSOP16E Package
LT3437 60V, 400mA (I
OUT
), Micropower Step-Down DC/DC
Converter with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
= <1µA,
DFN Package
LT3493 36V, 1.2A (I
OUT
), 750kHz, High Effi ciency Step-Down
DC/DC Converter
V
IN
: 3.6V to 36V, V
OUT(MIN)
= 0.78V, I
Q
= 1.9mA, I
SD
< 2µA,
DFN Package
Burst Mode is a registered trademark of Linear Technology Corporation.
TYPICAL APPLICATIONS
300kHz, 3.3V Step-Down Converter
V
IN
4V TO 36V
ON OFF
0.47µF
22µH
36.5k
68µF
KEMET
A700D686M010ATE015
3505 TA06
100pF
150pF
2.2µF
226k
11.3k
V
OUT
3.3V
1A, V
IN
> 5V
1.2A, V
IN
> 8.5V
100k
V
IN
BOOST
GND
FB
V
C
SHDN
SW
LT3505
R
T
1N4148
MBRM140