TK11818

TK11816, TK11817, TK11818, TK11819 DC-DC CONVERTER FEATURES s s s s s s Miniature Package (SOT-23L-6) Few External Components Internal Rectifier and Regulator Wide Input Voltage Range (1.1 to 18 V) Selectable Output Voltages Single Battery Cell Operation APPLICATIONS s s s s s s s s s Variable Capacitance and PIN Diode Bias Portable Instrumentation Radio Control Systems Mobile Radios Cellular Telephones Cordless Telephones Fiber-Optic Receivers Local Area Network (LAN) Receivers 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 01 S 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...