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TK11812MD2 Datasheet

  • TK11812MD2

  • DC-DC CONVERTER

  • 8頁

  • TOKO   TOKO

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TK11812
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)
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.
BLOCK DIAGRAM
VIN
FB
OSC
TK11812
VIN
20P
FB
GND
FB
OSC
VOUT
ORDERING INFORMATION
VOUT
TK11812M
Tape/Reel Code
OSCILLATOR
Vref
-
+
FB
TAPE/REEL CODE
TL: Tape Left
GND
June 1999 TOKO, Inc.
Page 1

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