Datasheet

LTC3631
22
3631fe
For more information www.linear.com/LTC3631
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
 LINEAR TECHNOLOGY CORPORATION 2009
LT 0513 REV E • PRINTED IN USA
[phone]
●
FAX: [phone]
●
www.linear.com/LTC3631
relaTeD parTs
Typical applicaTion
5V, 100mA Regulator for Automotive Applications
V
IN
LTC3631
RUN
C
IN
2.2µF
SS
3631 TA06a
SW
V
BATT
4.5V TO 45V
AND SURVIVES
TRANSIENTS
UP TO 60V
V
OUT
*
5V
100mA
*V
OUT =
V
BATT
FOR V
BATT
< 5V
V
FB
HYST
I
SET
GND
L1
100µH
R1
470k
R2
88.7k
C
IN
: TDK C3225X7R2A225M
C
OUT
: KEMET C1210C106K4RAC
L1: COILTRONICS DRA73-101-R
C
OUT
10µF
PART NUMBER DESCRIPTION COMMENTS
LTC3632 50V, 20mA Synchronous Micropower Step-Down DC/DC Converter V
IN
: 4.5V to 50V (60V
MAX
), V
OUT(MIN)
= 0.8V, I
Q
= 12µA,
I
SD
= 3µA, 3mm × 3mm DFN, MS8E
LTC3642 45V, 50mA Synchronous Micropower Step-Down DC/DC Converter V
IN
: 4.5V to 45V (60V
MAX
), V
OUT(MIN)
= 0.8V, I
Q
= 12µA,
I
SD
= 3µA, 3mm × 3mm DFN8, MS8E
LTC1474 18V, 250mA (I
OUT
), High Efficiency Step-Down DC/DC Converter V
IN
: 3V to 18V, V
OUT(MIN)
= 1.2V, I
Q
= 10µA, I
SD
= 6µA, MS8E
LT1934/LT1934-1 36V, 250mA (I
OUT
), Micropower Step-Down DC/DC Converter with
Burst Mode Operation
V
IN
: 3.2V to 34V, V
OUT(MIN)
= 1.25V, I
Q
= 12µA, I
SD
< 1µA,
ThinSOT
™ Package
LT1939 25V, 2A, 2.5MHz High Efficiency DC/DC Converter and LDO
Controller
V
IN
: 3.6V to 25V, V
OUT(MIN)
= 0.8V, I
Q
= 2.5mA, I
SD
< 10µA,
3mm × 3mm DFN10
LT1976/LT1977 60V, 1.2A (I
OUT
), 200kHz/500kHz, High Efficiency Step-Down DC/DC
Converter with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.2V, I
Q
= 100µA, I
SD
< 1µA,
TSSOP16E
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,
3mm × 3mm DFN10, TSSOP16E
LT3470 40V, 250mA (I
OUT
), High Efficiency Step-Down DC/DC Converter
with Burst Mode Operation
V
IN
: 4V to 40V, V
OUT(MIN)
= 1.2V, I
Q
= 26µA, I
SD
< 1µA,
2mm × 3mm DFN8, ThinSOT
LT3685 36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High
Efficiency Step-Down DC/DC Converter
V
IN
: 3.6V to 38V, V
OUT(MIN)
= 0.78V, I
Q
= 70µA, I
SD
< 1µA,
3mm × 3mm DFN10, MSOP10E
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.