TK11830 Datasheet, PDF (1/13 Pages) TOKO, Inc – POSITIVE-TO-NEGATIVE DC-DC CONVERTER

FEATURES
s Positive-to-Negative Converter
s Adjustable Output Voltage
s On/Off Control
s Thermal Protection Sensor
s Broad Operating Voltage Range
s Miniature Package (SOT-23L)
TK11830
POSITIVE-TO-NEGATIVE DC-DC CONVERTER
APPLICATIONS
s Pagers
s Cassette Recorders
s Cordless Telephones
s Portable Instrumentation
s Radio Control Systems
s Battery Operated Equipment
s 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
CONTROL
VIN
VFB
GND
VOSC
ORDERING INFORMATION
TK11830M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 1999 TOKO, Inc.
BLOCK DIAGRAM
VFB
GND
VOSC
THERMAL
PROTECTION
COMP
OSCILLATOR
CONTROL
REFERENCE
VOLTAGE
Vref
CONTROL
VIN
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