Page 1
TK11835
ADVANCED INFORMATION
POSITIVE TO NEGATIVE DC-DC CONVERTER
FEATURES
■ Positive-to-Negative Switching Regulator
■ Adjustable Output Voltage
■ Thermal Protection Sensor
■ Broad Operating Voltage Range
■ Miniature Package (SOT-26)
■ 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.
The thermal protection feature provides oscillator shutdown 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
capability for the external transistor allow flexible operation
in a large number of applications.
APPLICATIONS
■ Cellular Phones
■ Cordless Telephones
■ Radio Control Systems
■ Wireless Communications Systems
■ Battery Operated Equipment
■ Portable Instrumentations
■ Portable Computers
■ Personal Digital Assistants
■ Local Area Network (LAN) Receivers
TK11835
BASE
1
N35
I
2 5
S
V
3
FB
V
6
CC
GND
V
4
REF
The TK11835 is available in a miniature SOT-26 surface
mount package.
ORDERING INFORMATION
TK11835MTL
Note: Standard packaging is tape left, 1000 pcs/reel.
BLOCK DIAGRAM
V
REF
4
HYST
COMP
+
COMP
+
-
PROTECTION
V
FB
3
I
2
S
THERMAL
REFERENCE
VOLTAGE
5
GND
V
6
CC
1
BASE
May, 1997 TOKO, Inc. Page 1
Loading...