LTC3632 LINER [Linear Technology], LTC3632 Datasheet - Page 22

• Manufacturer Part Number: LTC3632
• Description: High Effi ciency, High Voltage 20mA Synchronous Step-Down Converter
• Manufacturer: LINER [Linear Technology]

LTC3632
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LTC3631/LTC3631-3.3/
LTC3631-5
LTC3642/LTC3642-3.3/
LTC3642-5
LTC1474
LT1934/LT1934-1
LT1939
LT3437
LT3470
LT3685
22
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
45V, 100mA Synchronous Micropower Step-Down DC/DC Converter V
45V, 50mA Synchronous Micropower Step-Down DC/DC Converter
18V, 250mA (I
36V, 250mA (I
Burst Mode Operation
25V, 2A, 2.5MHz High Effi ciency DC/DC Converter and LDO
Controller
60V, 400mA (I
Burst Mode Operation
40V, 250mA (I
with Burst Mode Operation
36V with Transient Protection to 60V, 2A (I
Effi ciency Step-Down DC/DC Converter
●
FAX: [phone]
TRANSIENTS UP TO 60V
OUT
OUT
OUT
OUT
), High Effi ciency Step-Down DC/DC Converter
), Micropower Step-Down DC/DC Converter with
), Micropower Step-Down DC/DC Converter with
), High Effi ciency Step-Down DC/DC Converter
4.5V TO 50V
5V, 20mA Regulator for Automotive Applications
C
C
L1: COILTRONICS DRA73-102-R
●
IN
OUT
V
www.linear.com
: TDK C3225X7R2A105M
BATT
: KEMET C1210C106K4RAC
C
1μF
IN
OUT
), 2.4MHz, High
V
RUN
I
SS
SET
IN
LTC3632
GND
HYST
SW
V
*V
FB
OUT
= V
1mH
L1
BATT
FOR V
COMMENTS
I
V
I
V
MSOP8
V
ThinSOT ™ Package
V
3mm × 3mm DFN10
V
3mm × 3mm DFN10, TSSOP16E
V
2mm × 3mm DFN8, ThinSOT
V
3mm × 3mm DFN10, MSOP10E
R1
470k
R2
88.7k
SD
SD
IN
IN
IN
IN
IN
IN
IN
IN
BATT
: 4.5V to 45V (60V
: 4.5V to 45V (60V
: 3V to 18V, V
: 3.2V to 34V, V
: 3.6V to 25V, V
: 3.3V to 60V, V
: 4V to 40V, V
: 3.6V to 38V, V
= 3μA, 3mm × 3mm DFN8, MSOP8E
= 3μA, 3mm × 3mm DFN8, MSOP8E
< 5V
C
10μF
OUT
3632 TA06a
OUT(MIN)
OUT(MIN)
V
5V
20mA
OUT
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
*
MAX
MAX
© LINEAR TECHNOLOGY CORPORATION 2009
= 1.2V, I
= 1.2V, I
), V
), V
= 1.25V, I
= 0.8V, I
= 1.25V, I
= 0.78V, I
OUT(MIN)
OUT(MIN)
LT 0610 REV B • PRINTED IN USA
Q
Q
= 10μA, I
Q
= 26μA, I
Q
Q
Q
= 2.5mA, I
= 0.8V, I
= 0.8V, I
= 12μA, I
= 100μA, I
= 70μA, I
SD
SD
Q
Q
= 6μA,
< 1μA,
SD
SD
SD
= 12μA,
= 12μA,
SD
< 1μA,
< 1μA,
< 10μA,
< 1μA,
3632fb