DC-DC CONVERTER
TK11822/11823
DC-DC CONVERTER FEATURES
s s s s s s Very Low Noise Low Operating Voltage Range Few External Components Wi...
Description
TK11822/11823
DC-DC CONVERTER FEATURES
s s s s s s Very Low Noise Low Operating Voltage Range Few External Components Wide Supply Voltage Range Sinewave Oscillation Selectable Output Voltages
APPLICATIONS
s s s s s s Headphone Stereos Pagers Mobile Wireless Equipment Electronic Diaries Other Battery-powered Equipment LCD TV's
DESCRIPTION
The TK11822M and TK11823M are booster-type DC-DC converters developed principally for use as power supplies to drive variable capacitance diodes. Both products are low power output types, suitable for operation at low voltages. To suppress AM band noise, they use high frequency sine wave oscillation. Both products are available in two output voltages, allowing the user to select the most efficient voltage for the equipment. The products have built-in rectifier diodes and small packages, contributing to equipment miniaturization.
TK11822/23M
EMITTER
R3
1 2 3
6 5 4
VIN GND VO
BASE DA
ORDERING INFORMATION TK11822M TK11823M
BLOCK DIAGRAM
Tape/Reel Code
VO
4
3
DA
TAPE/REEL CODE
BX: TL: Bulk/Bag Tape Left
GND
5
Reference Voltage
Feedback Control
2
BASE
VIN
6
1
EMITT
March 19, 1996 TOKO, Inc.
Page 1
TK11822/11823
ABSOLUTE MAXIMUM RATINGS
Input Voltage .............................................................. 8 V Output Current ..................................................... 0.5 mA Operating Voltage Range................................. 1.1 to 6 V Power Dissipation (Note 1) ................................ 200...
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