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TL497ACNSR Datasheet(PDF) 2 Page - Texas Instruments

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Part No. TL497ACNSR
Description  500-mA PEAK STEP-UP STEP-DOWN,INVERTING SWITCHING VOLTAGE REGULATOR
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TL497ACNSR Datasheet(HTML) 2 Page - Texas Instruments

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TL497A
500mA PEAK STEPUP, STEPDOWN, INVERTING SWITCHING VOLTAGE REGULATOR
SLVS009F − JUNE 1976 − REVISED FEBRUARY 2005
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
TA
SMALL-OUTLINE
(D)
PLASTIC DIP
(N)
SHRINK
SMALL-OUTLINE
(PW)
CHIP
FORM
(Y)
0
°C to 70°C
TL497ACD
TL497ACN
TL497ACPW
TL497AY
−40
°C to 85°C
TL497AID
TL497AIN
The D and PW packages are only taped and reeled. Add the suffix R to the device type (e.g.,
TL497ACPWR). Chip forms are tested at 25
°C.
functional block diagram
BASE†
11
12
BASE DRIVE†
CUR LIM SENS
FREQ CONTROL
INHIBIT
SUBSTRATE
COMP INPUT
CATHODE
Current
Limit
Sense
13
3
2
1
4
6
1.2-V
Reference
10
8
7
COL OUT
EMIT OUT
ANODE
Oscillator
† BASE and BASE DRIVE are used for device testing only. They normally are not used in circuit applications of the device.


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