LTC3631 Linear Technology Corporation, LTC3631 Datasheet - Page 20

• Manufacturer Part Number: LTC3631
• Description: High Voltage 100mA Synchronous Step-Down Converter
• Manufacturer: Linear Technology Corporation

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LTC3631
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LTC3642
LTC1474
LT
LT1934/LT1934-1 36V, 250mA (I
LT1936
LT1939
LT1976/LT1977
LT3434/LT3435
LT3437
LT3470
LT3480
LT3481
LT3493
LT3500
LT3505
LT3506/LT3506A 25V, Dual 1.6A (I
LT3508
LT3685
ThinSOT is a trademark of Linear Technology Corporation.
20
®
1766
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
45V, 50mA Synchronous Micropower Step-Down DC/DC Converter
18V, 250mA (I
60V, 1.2A (I
Converter
Burst Mode Operation
36V, 1.4A (I
Converter
25V, 2A, 2.5MHz High Effi ciency DC/DC Converter and LDO
Controller
60V, 1.2A (I
Converter with Burst Mode Operation
60V, 2.4A (I
Converter with Burst Mode Operation
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 with Burst Mode Operation
34V with Transient Protection to 36V, 2A (I
Effi ciency Step-Down DC/DC Converter with Burst Mode Operation
36V, 1.4A (I
Converter
36V, 40V
Controller
36V with Transient Protection to 40V, 1.4A (I
Effi ciency Step-Down DC/DC Converter
DC/DC Converter
36V with Transient Protection to 40V, Dual 1.4A (I
Effi ciency Step-Down DC/DC Converter
36V with Transient Protection to 60V, 2A (I
Effi ciency Step-Down DC/DC Converter
MAX
●
FAX: [phone]
OUT
OUT
OUT
OUT
OUT
, 2A, 2.5MHz High Effi ciency DC/DC Converter and LDO
OUT
OUT
OUT
OUT
), 200kHz, High Effi ciency Step-Down DC/DC
), 500kHz High Effi ciency Step-Down DC/DC
), 200kHz/500kHz, High Effi ciency Step-Down DC/DC
), 200kHz/500kHz, High Effi ciency Step-Down DC/DC
), 750kHz High Effi ciency Step-Down DC/DC
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
), 575kHz/1.1MHz High Effi ciency Step-Down
AND SURVIVES
TRANSIENTS
4.5V TO 45V
UP TO 60V
5V, 100mA Regulator for Automotive Applications
●
V
BATT
www.linear.com
OUT
OUT
OUT
C
2.2μF
OUT
IN
), 2.4MHz, High
), 2.8MHz, High
), 2.4MHz, High
C
C
L1: COILTRONICS DRA73-101-R
IN
OUT
), 3MHz, High
: TDK C3225X7R2A225M
OUT
: KEMET C1210C106K4RAC
V
RUN
I
SS
SET
), 3MHz, High
IN
LTC3631
GND
HYST
V
SW
FB
100μH
L1
COMMENTS
V
I
V
V
TSSOP16/E
V
ThinSOT ™ Package
V
V
3mm × 3mm DFN10
V
TSSOP16E
V
TSSOP16E
V
3mm × 3mm DFN10, TSSOP16E
V
2mm × 3mm DFN8, ThinSOT
V
3mm × 3mm DFN10, MSOP10E
V
3mm × 3mm DFN10, MSOP10E
V
2mm × 3mm DFN6
V
3mm × 3mm DFN10
V
3mm × 3mm DFN8, MS8E
V
5mm × 4mm DFN16, TSSOP16E
V
4mm × 4mm QFN24, TSSOP16E
V
3mm × 3mm DFN10, MSOP10E
SD
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
: 4.5V to 45V (60V
: 3V to 18V, V
: 5.5V to 60V, V
: 3.2V to 34V, V
: 3.6V to 36V, V
: 3.6V to 25V, V
: 3.3V to 60V, V
: 3.3V to 60V, V
: 3.3V to 60V, V
: 4V to 40V, V
: 3.6V to 38V, V
: 3.6V to 34V, V
: 3.6V to 36V, V
: 3.6V to 36V, V
: 3.6V to 34V, V
: 3.6V to 25V, V
: 3.7V to 37V, V
: 3.6V to 38V, V
= 3μA, 3mm × 3mm DFN8, MS8
R1
470k
R2
88.7k
3631 TA06a
C
10μF
OUT(MIN)
OUT(MIN)
OUT
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
MAX
V
5V
100mA
OUT
= 1.2V, I
= 1.2V, I
), V
© LINEAR TECHNOLOGY CORPORATION 2009
= 1.2V, I
= 1.25V, I
= 1.2V, I
= 0.8V, I
= 1.2V, I
= 1.2V, I
= 1.25V, I
= 0.78V, I
= 1.26V, I
= 0.8V, I
= 0.8V, I
= 0.78V, I
= 0.8V, I
= 0.8V, I
= 0.78V, I
OUT(MIN)
Q
Q
= 10μA, I
Q
Q
Q
Q
Q
= 26μA, I
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
= 2.5mA, I
= 1.9mA, I
= 2.5mA, I
= 100μA, I
= 100μA, I
= 1.9mA, I
= 2.5mA, I
= 3.8mA, I
= 4.6mA, I
LT 0509 REV A • PRINTED IN USA
= 0.8V, I
= 12μA, I
= 100μA, I
= 70μA, I
= 50μA, I
= 2mA, I
= 70μA, I
SD
SD
Q
SD
= 6μA, MS8E
SD
SD
SD
< 1μA,
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
= 12μA,
SD
= 2μA,
= 25μA,
< 1μA,
< 1μA, MS8E
< 10μA,
< 1μA,
< 1μA,
< 1μA,
< 1μA,
< 1μA,
< 10μA,
= 30μA,
= 1μA,
< 1μA,
< 1μA,
3631fa