TK712xx
LOW DROPOUT REGULATOR
FEATURES
s
Low Dropout Voltage
s
Low Quiescent Current
s
Very Stable Output
s
Low Noise (35
µ
Vrms)
s
Miniature Package (SOT-25)
APPLICATIONS
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Battery Powered Systems
s
Portable Consumer Equipment
s
Cordless Telephones
s
Personal Communications Equipment
s
Radio Control Systems
s
Toys
s
Low Voltage Systems
DESCRIPTION
TK712xx is a low dropout, linear regulator. Since a PNP
power transistor is used, dropout voltage is very low,
making it possible to maintain stable output voltage even
as the battery decreases. This allows longer battery life.
The TK712xx has a noise bypass pin available for noise
reduction.
The TK712xx is available in a miniature SOT-25 surface
mount package.
20P
TK712xx
NOISE
BYPASS
GND
VIN
GND
VOUT
ORDERING INFORMATION
TK712
VoltageCode
M
Tape/Reel Code
VIN
BLOCK DIAGRAM
VOUT
VOLTAGE CODE
20 = 2.0 V
25 = 2.5 V
28 = 2.8 V
30 = 3.0 V
33 = 3.3 V
35 = 3.5 V
40 = 4.0 V
45 = 4.5 V
50 = 5.0 V
TAPE/REEL CODE
TL: Tape Left
NOISE
BYPASS
THERMAL
PROTECTION
BANDGAP
REFERENCE
GND
GND
January 1999 TOKO, Inc.
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