
January 2001 TOKO, Inc.
Page 1
TK11816M, TK11817M,
TK11818M, TK11819M
GND
DK
OSC
VIN
OSCILLATOR
STARTUP
CIRCUIT
REFERENCE
VOLTAGE
FEEDBACK
CONTROL
VOUT
T1
DC-DC CONVERTER
!
! MiniaturePackage(SOT-23L-6)
!
! Few External Components
!
! Internal Rectifier and Regulator
!
! Wide Input Voltage Range (1.1 to 18 V)
!
! SelectableOutputVoltages
!
! Single Battery Cell Operation
TK11816M
TK11817M
TK11818M
TK11819M
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
BLOCK DIAGRAM
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 compo-
nent 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 induc-
tor is available from TOKO (P/N: 395GN-0091IB).
!
! Variable Capacitance and PIN Diode Bias
!
! PortableInstrumentation
!
! Radio Control Systems
!
! Mobile Radios
!
! CellularTelephones
!
! CordlessTelephones
!
! Fiber-OpticReceivers
!
! LocalAreaNetwork(LAN)Receivers
!
! BatteryOperatedEquipment
TK11816
TK11817
TK11818
TK11819
OSC
VIN
VOUT
T1
DK
GND
01S
FEATURES
APPLICATIONS
DESCRIPTION