TK11816, TK11817,
TK11818, TK11819
DC-DC CONVERTER
FEATURES
s
Miniature Package (SOT-23L-6)
s
Few External Components
s
Internal Rectifier and Regulator
s
Wide Input Voltage Range (1.1 to 18 V)
s
Selectable Output Voltages
s
Single Battery Cell Operation
APPLICATIONS
s
Variable Capacitance and PIN Diode Bias
s
Portable Instrumentation
s
Radio Control Systems
s
Mobile Radios
s
Cellular Telephones
s
Cordless Telephones
s
Fiber-Optic Receivers
s
Local Area Network (LAN) Receivers
s
Battery Operated Equipment
DESCRIPTION
The TK1181x series devices generate DC output voltages
ranging from 7.2 to 32 V. Each device provides two
regulated output voltages selectable by a single jumper.
Designed for step-up operation, these devices will operate
with an input voltage as low as 1.1 V, thus allowing single
battery cell operation.
These converters have a built-in relaxation oscillator. The
frequency of operation is determined by external component
values. The built-in rectifier combined with an internal
temperature compensated reference allows stable output
voltages with minimal external components.
These devices are available in a miniature SOT-23L-6
surface mount package. An optimized surface mount
inductor is available from TOKO (P/N: 395GN-0091IB).
BLOCK DIAGRAM
VIN
OSC
01S
TK11816
TK11818
TK11817
TK11819
VIN
OSC
DK
T1
GND
VOUT
ORDERING INFORMATION
DK
STARTUP
CIRCUIT
TK11816M
TK11817M
TK11818M
TK11819M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
GND
OSCILLATOR
VOUT
FEEDBACK
CONTROL
REFERENCE
VOLTAGE
T1
January 1999 TOKO, Inc.
Page 1
TOKO [ TOKO, INC ]
