TK11830
POSITIVE-TO-NEGATIVE DC-DC CONVERTER
FEATURES
s
Positive-to-Negative Converter
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Adjustable Output Voltage
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On/Off Control
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Thermal Protection Sensor
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Broad Operating Voltage Range
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Miniature Package (SOT-23L)
APPLICATIONS
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Pagers
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Cassette Recorders
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Cordless Telephones
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Portable Instrumentation
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Radio Control Systems
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Battery Operated Equipment
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Local Area Network (LAN) Receivers
DESCRIPTION
The TK11830 is a positive-to-negative DC-DC converter.
This IC converts a positive input voltage into a regulated
negative output voltage. This DC-DC converter features
an On/Off function with an active low control. The internal
voltage reference provides a stable output voltage which
can be set from -0.5 to -12.5 V. The thermal protection
feature provides oscillator shutdown in the event of an
overload condition. The wide input voltage range of 2.5 to
15 V and a 60 mA output current capability allow flexible
operation in a large number of applications.
The TK11830 is available in a miniature SOT-23L surface
mount package. Optimized Toko inductors are available.
TK11830
Vref
20P
VFB
GND
VOSC
CONTROL
VIN
ORDERING INFORMATION
BLOCK DIAGRAM
VFB
GND
VOSC
TK11830M
Tape/Reel Code
THERMAL
PROTECTION
TAPE/REEL CODE
TL: Tape Left
COMP
OSCILLATOR
CONTROL
REFERENCE
VOLTAGE
Vref
CONTROL
VIN
January 1999 TOKO, Inc.
Page 1
TOKO [ TOKO, INC ]
