ltc1503-2 Linear Technology Corporation, ltc1503-2 Datasheet - Page 12

• Manufacturer Part Number: ltc1503-2
• Description: Ltc1503-2 - High Efficiency Inductorless Step-down Dc/dc Converter
• Manufacturer: Linear Technology Corporation

RELATED PARTS
TYPICAL APPLICATIO
LTC1503-1.8/LTC1503-2
PART NUMBER
LTC1474/LTC1475
LTC1502-3.3
LTC1514/LTC1515
LTC1555/LTC1556
LTC1627
LTC1754-3.3
LTC1754-5
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
DESCRIPTION
Low Quiescent Current Step-Down DC/DC Converter
Single Cell to 3.3V Quadrupler Charge Pump
Micropower, Regulated 5V Step-Up/Step-Down
Charge Pump DC/DC Converters
SIM Power Supply and Level Translator
Monolithic Synchronous Buck Step-Down
Switching Regulator
3.3V Charge Pump with Shutdown in SOT-23
5V Charge Pump with Shutdown in SOT-23
1-CELL Li-Ion OR
3-CELL NiMH
ON OFF
U
DC/DC Converter with Shutdown and Soft-Start
2N7002
10 F
1 F
4
2
3
5
10nF
V
C1
C1
SHDN/SS
LTC1503-1.8
IN
–
+
V
GND
OUT
C2
C2
–
+
1
8
6
7
COMMENTS
I
V
2V to 10V Input Range; Up to 50mA Output Current: Short-Circuit
and Overtemperature Protected
Step-Up/Step-Down Charge Pump Generates 5V or 3V
2.65V to 8.5V Input Range; V
Low Dropout Operation; 100% Duty Cycle
50mA Output Current, I
50mA Output Current, I
OUT
IN
= 0.9V to 1.8V, I
to 250mA, I
1 F
10 F
Q
= 10 A; 8-Lead MSOP
OUT
V
I
OUT
CC
CC
OUT
= 10mA; I
1503-1.8/2 TA03
= 13 A
= 13 A
= 100mA
= 1.8V
OUT
LINEAR TECHNOLOGY CORPORATION 1999
from 0.8V, I
150312f LT/TP 0200 4K • PRINTED IN USA
Q
= 40 A
OUT
to 500mA;