TK11835 Datasheet, PDF (1/1 Pages) TOKO, Inc – POSITIVE TO NEGATIVE DC-DC CONVERTER

TK11835
ADVANCED INFORMATION _{POSITIVE TO NEGATIVE DC-DC CONVERTER}
FEATURES
s Positive-to-Negative Switching Regulator
s Adjustable Output Voltage
s Thermal Protection Sensor
s Broad Operating Voltage Range
s Miniature Package (SOT-26)
s Synchronization to External Pulse
DESCRIPTION
The TK11835 is a positive to negative switching regulator.
This IC converts a positive input voltage into a regulated
negative output voltage. The maximum regulated output
voltage and current are determined by the choice of the
external transistor and inductor.
APPLICATIONS
s Cellular Phones
s Cordless Telephones
s Radio Control Systems
s Wireless Communications Systems
s Battery Operated Equipment
s Portable Instrumentations
s Portable Computers
s Personal Digital Assistants
s Local Area Network (LAN) Receivers
TK11835
The thermal protection feature provides oscillator shut-
BASE ₁
down in the event of an overload condition. The wide input
voltage range of 1.8 V to 15 V and a 50 mA base drive
N35
IS ₂
capability for the external transistor allow flexible operation
in a large number of applications.
VFB ₃
The TK11835 is available in a miniature SOT-26 surface
mount package.
6 VCC
5 GND
4 VREF
ORDERING INFORMATION
TK11835MTL
Note: Standard packaging is tape left, 1000 pcs/reel.
BLOCK DIAGRAM
VREF ₄
VFB ₃
IS 2
-
+
COMP
REFERENCE
VOLTAGE
+
-
HYST
COMP
THERMAL
PROTECTION
5
GND
6 VCC
1 BASE
May, 1997 TOKO, Inc.
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