TL497A
SWITCHING VOLTAGE REGULATORS
SLVS009D – JUNE 1976 – REVISED JULY 1999
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
FORM
(Y)
SHRINK
SMALL-OUTLINE
(PW)
T
A
SMALL-OUTLINE
(D)
PLASTIC DIP
(N)
0°C to 70°C
TL497ACD
TL497AID
TL497ACN
TL497AIN
TL497ACPW
—
TL497AY
—
–40°C to 85°C
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
11
12
†
†
BASE
BASE DRIVE
Current
Limit
13
CUR LIM SENS
Sense
3
FREQ CONTROL
2
1
Oscillator
INHIBIT
10
COMP INPUT
COL OUT
4
6
1.2-V
Reference
8
7
SUBSTRATE
CATHODE
EMIT OUT
ANODE
†
BASE and BASE DRIVE are used for device testing only. They normally are not used in circuit applications of the device.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
