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TK73200

TOKO
Part Number TK73200
Manufacturer TOKO
Description ADJUSTABLE LOW DROPOUT REGULATOR
Published Apr 16, 2005
Detailed Description TK73200 ADJUSTABLE LOW DROPOUT REGULATOR FEATURES s Up to 5 A Output Current Capability with External PNP Transistor s I...
Datasheet PDF File TK73200 PDF File

TK73200
TK73200

Overview
TK73200 ADJUSTABLE LOW DROPOUT REGULATOR FEATURES s Up to 5 A Output Current Capability with External PNP Transistor s Internal Short Circuit Protection s Excellent Load Regulation s CMOS/TTL-Compatible On/Off Switch s Internal Reverse Bias Current Protection Switch s Internal Thermal Shutdown s Wide Adjustable Output Voltage Range (2.
0 V to 12.
0 V) s Continuous and Pulsed Current Modes APPLICATIONS s s s s s s s s s Battery Powered Systems Cellular/Cordless Telephones Radio Control Systems Wireless Communications Systems Portable Instrumentations Portable Computers Personal Digital Assistants Local Area Network (LAN) Receivers Power Recovery for Microprocessors DESCRIPTION The TK73200 is a controller IC for an adjustable low dropout voltage regulator.
The TK73200 and the external PNP power transistor provide adjustable output voltages from 2 to 12 V and output current from 100 mA to 5 A.
By utilizing an external PNP power transistor, low dropout voltage at high current can be readily achieved.
The internal electronic switch can be controlled by TTL or CMOS logic levels.
The device is in the “on” state when the control pin is pulled to a high logic level.
A pin for a bypass capacitor, which connects to the internal circuitry, is provided to lower the overall output noise level.
The current limit characteristics can be configured as continuous (constant current) or pulsed (cycling).
An internal thermal shutdown circuit limits the junction temperatures to below 150 °C.
BLOCK DIAGRAM VIN IPK CPULSE BASE VADJ TK73200 CONTROL NOISE BYPASS CPULSE VIN BASE VADJ GND IPK ORDERING INFORMATION TK73200M L Tape/Reel Code Temp.
Code TAPE/REEL CODE PACKAGE CODE L: Tape Left M: SOT23L-8 CONTROL ON/OFF CIRCUIT THERMAL SENSOR Package Code BANDGAP REFERENCE TEMP.
RANGE C: -30 to 80 °C GND NOISE BYPASS June 1999 TOKO, Inc.
Page 1 TK73200 ABSOLUTE MAXIMUM RATINGS (NOTE 5) Supply Voltage Range .
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19 V Power Dissipation (Note 1)...


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