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LTC1502CS8-3.3 Datasheet(PDF) 8 Page - Linear Technology

Part # LTC1502CS8-3.3
Description  Single Cell to 3.3V Regulated Charge Pump DC/DC Converter
PDF  8 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1502CS8-3.3 Datasheet(HTML) 8 Page - Linear Technology

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LTC1502-3.3
15023f LT/TP 0899 4K • PRINTED IN USA
©LINEAR TECHNOLOGY CORPORATION 1999
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com
TYPICAL APPLICATIONS
PART NUMBER
DESCRIPTION
COMMENTS
LT1307/LT1307B
750mA Single Cell Micropower 600kHz PWM DC/DC Converter
3.3V at 75mA from 1 Cell, MSOP Package
LT1308A/LT1308B
2A Single Cell Micropower 600kHz PWM DC/DC Converter
3.3V at 300mA from 1 Cell, SO-8 Package
LTC1517-3.3
Micropower Regulated 3.3V Charge Pump DC/DC Converter
IOUT = 15mA (VIN ≥ 2.5V)
LTC1558/LTC1559
Backup Battery Controller with Programmable Output
Uses Single NiCd Cell, 100mW Output (Min)
LT1610
Single Cell Micropower 1.7MHz PWM DC/DC Converter
30
µA IQ, MSOP Package
LT1611
1.4MHz Inverting Switching Regulator
5V to – 5V at 150mA, Low Output Noise, SOT-23 package
LT1613
1.4MHz Boost Switching Regulator
5V at 200mA from 3.3V Input, SOT-23 Package
LT1615
Micropower Boost Switching Regulator
30
µA IQ, VOUT Up to 34V, SOT-23 Package
LTC1682
Low Noise Doubler Charge Pump
60
µVRMS Noise, IOUT Up to 50mA, MSOP
RELATED PARTS
Single Cell Battery Backup Supply with Autoswitchover and No Reverse Current
Single Cell to 3.3V DC/DC Converter with Shutdown
1
2
3
1502-3.3 TA03
4
SHDN
µCONTROLLER
8
7
1
µF
100
Ω
6
5
VIN
GND
1
µF
SINGLE CELL
NiCd OR
ALKALINE
10
µF
10
µF
10
µF
VOUT = 3.3V
IOUT = 10mA
LTC1502-3.3
C2
C1+
C1–/SHDN
VOUT
C3+
C3 –
1
7
6
1502-3.3 TA04
5
8
31
2
LT1521-3.3
2
1
µF
3
4
7
8
Q1
2N7002
VIN
GND
1
µF
100
Ω
10
µF
150k
1
µF
10
µF
3.9V VTRIP*
1 CELL
NiCd
1.1M
10
µF
VOUT = 3.3V
IOUT = 300mA
(IOUT = 10mA
IN BACKUP MODE)
LOGIC LOW =
BACKUP MODE
LTC1502-3.3
3
4
5
6
21
LTC1540
C2
C1+
C1–/SHDN
VOUT
C3+
C3 –
TRICKLE
CHARGE
MAIN
SUPPLY
5V
470k
*REFERRED TO MAIN SUPPLY
+
–



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