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LT1949 Datenblatt(PDF) 8 Page - Linear Technology

Teilenummer LT1949
Bauteilbeschribung  600kHz, 1A Switch PWM DC/DC Converter
PDF  8 Pages
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Hersteller  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1949 Datenblatt(HTML) 8 Page - Linear Technology

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LT1949
© LINEAR TECHNOLOGY CORPORATION 1999
1949f LT/TP 0300 4K • PRINTED IN THE USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900q FAX:(408)434-0507 q www.linear-tech.com
PART NUMBER
DESCRIPTION
COMMENTS
LT1054
High Power Regulated Charge Pump
Up to 100mA Output with No Inductors
LT1302
High Output Current Micropower DC/DC Converter
5V/600mA from 2V, 2A Internal Switch, 200
µA IQ
LT1304
2-Cell Micropower DC/DC Converter
Low-Battery Detector Active in Shutdown
LT1307B
Single Cell Micropower 600kHz PWM DC/DC Converter
3.3V at 75mA from 1 Cell, MSOP Package
LT1308B
2A 600kHz PWM DC/DC Converter
TSSOP Package
LT1317B
Micropower, 600kHz PWM DC/DC Converter
2 Cells to 3.3V at 200mA, MSOP Package
LTC
®1516
2-Cell to 5V Regulated Charge Pump
12
µA IQ, No Inductors, 5V at 50mA from 3V Input
LT1613
Single Cell 1.4MHz PWM DC/DC Converter
3.3V to 5V at 200mA, SOT-23 Package
LTC1682
Doubler Charge Pump with Low Noise Linear Regulator
3.3V and 5V Outputs with 60
µVRMS Noise, Up to 80mA Output
LTC1754
Micropower 3.3V/5V Charge Pump with Shutdown
Up to 50mA Output, IQ = 13µA, SOT-23 Package
RELATED PARTS
VIN
VIN
3.3V
SW
FB
LT1949
L1
10
µH
D7
R3
7.5k
1%
R2
40.2k
1%
R1
47k
1949 TA01
C2
10
µF
C7
0.1
µF
C8
0.1
µF
C9
0.1
µF
C4
4.7
µF
C5
4.7
µF
C1
22
µF
C3
680pF
D5
D1
D2
–8V
10mA
8V
200mA
23V
5mA
D6
C6
4.7
µF
VC
GND
SHDN
SHUTDOWN
LBI
LB0
C1: AVX TAJB226M010
C2: TAIYO YUDEN TMK432BJ106MN X7R 1210
C4, C5, C6: TAIYO YUDEN LMK316BJ475ML X5R1206
C7, C8, C9: 0.1
µF CERAMIC, 50V
D1 TO D6: FMMD7000, DUAL DIODE
D7: MBRM120LT3
L1: SUMIDA CDRH62B-100
+
D3
D4
Low Profile Triple Output LCD Bias Generator
TYPICAL APPLICATIO



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