TK11900
ADJUSTABLE LOW DROPOUT REGULATOR
FEATURES
s
Low Supply Current
s
Low Power Shutdown Mode
s
Low Noise Output
s
Low Dropout Voltage
s
Extremely High Stability
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High Speed On/Off Transient (50 µs typ.)
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Miniature Package (SOT-23L)
APPLICATIONS
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Portable Instrumentation
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Cordless Telephones
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Pagers
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Toys
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Cellular Telephones
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Test Equipment
DESCRIPTION
The TK11900 is a low dropout voltage regulator with external
voltage adjustment. The output can be set between 1.5 V
and 15 V by an external pair of resistors in a divider
configuration. The device has a bypass pin for an external
capacitor to reduce output noise to a typical 50 µV(rms). In
addition, a control pin is provided that is active low (a low
level turns on the output). In the “off” mode (control pin high)
the device draws only 65 µA of quiescent current.
The TK11900 is available in a miniature SOT-23L surface
mount package.
TK11900
NOISE
BYPASS
01S
VIN
GND
CONTROL
FEEDBACK
VOUT
ORDERING INFORMATION
TK11900M
Tape/Reel Code
VIN
BLOCK DIAGRAM
VOUT
CONTROL
SHUT
DOWN
THERMAL
PROTECTION
TAPE/REEL CODE
TL: Tape Left
BANDGAP
REFERENCE
FEEDBACK
NOISE
BYPASS
GND
November 2000 TOKO, Inc.
Page 1
TOKO [ TOKO, INC ]
