TK116xxU
THREE-TERMINAL VOLTAGE REGULATOR
FEATURES
s
Low Dropout Voltage
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Very Low Standby Current (No Load)
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Good Load Regulation
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Internal Thermal Shutdown
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Short Circuit Protection
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3% Output Voltage Accuracy
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Customized Versions Are Available
APPLICATIONS
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Battery Powered Systems
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Portable Consumer Equipment
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Cordless Telephones
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Personal Communications Equipment
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Portable Instrumentation
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Radio Control Systems
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Toys
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Low Voltage Systems
DESCRIPTION
The TK116xxU series devices are low dropout, linear 3-
terminal regulators.
An internal PNP pass-transistor is used in order to achieve
low dropout voltage (typically 160 mV at 80 mA load
current).
The regulated output voltages of 3, 3.3, 5 and 9 V are
available. The device has very low (400
碌A)
quiescent
current with no load and 2 mA with 60 mA load.
An internal thermal shutdown circuit limits the junction
temperature to below 150
擄C.
The load current is internally
monitored and the device will shut down in the presence
of a short circuit at the output.
The TK116xxU is available in the SOT-89 surface mount
package.
BLOCK DIAGRAM
TK116xxU
VIN
GND
GND
VOUT
ORDERING INFORMATION
VIN
VOUT
TK116
Voltage Code
U
Tape/Reel Code
THERMAL
PROTECTION
VOLTAGE CODE
30 = 3.0 V
33 = 3.3 V
50 = 5.0 V
90 = 9.0 V
TAPE/REEL CODE
TL: Tape Left
BANDGAP
REFERENCE
GND
January 1999 TOKO, Inc.
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