TK11812 Datasheet, PDF (1/8 Pages) TOKO, Inc – DC-DC CONVERTER

FEATURES
s Miniature Package (SOT-23L)
s Low Start-up Voltage [0.6 V (typ.)]
s Few External Components
s Adjustable Output Voltage (1.5 to 15 V)
s Wide Input Voltage Range (0.6 to 14 V)
TK11812
DC-DC CONVERTER
APPLICATIONS
s Pagers
s Cassette Recorders
s Cordless Telephones
s Portable Instrumentation
s Radio Control Systems
s Mobile Radios
s Battery Operated Equipment
s Local Area Network (LAN) Receivers
DESCRIPTION
The TK11812 is a low power, low input voltage step-up
DC-DC converter.
This device can be set to an output of 1.5 to 15 V DC using
two resistors. The output current is dependent upon the
input voltage and ranges from 8 mA at 1.6 V to 24 mA at
3.5 V. The efficiency is over 80% for an output current of
4 mA to 32 mA with a 3.5 V input and 5 V output.
The frequency of the built-in relaxation oscillator is set by
external components. The internal voltage regulator
provides a stable output voltage. Optimized Toko inductor
components are available.
The TK11812 is available in a miniature 6-pin SOT-23L
surface mount package.
TK11812
VIN
20P
FB
OSC
FB
GND
VOUT
ORDERING INFORMATION
TK11812M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
BLOCK DIAGRAM
VIN
FB
OSC
OSCILLATOR
Vref
-
+
VOUT
FB
June 1999 TOKO, Inc.
GND
Page 1