TK11811

TK11811 DC-DC CONVERTER FEATURES s s s s s Miniature Package (SOT-23L) Low Start-up Voltage [0.6 V (typ.)] Few External Components Selectable Output Voltage (1.9 V or 2.8 V) High and Low Current Optimized Designs APPLICATIONS s s s s s s s s Pagers Cassette Recorders Cordless Telephones Portable Instrumentation Radio Control Systems Mobile Radios Battery Operated Equipment Local Area Network (LAN) Receivers DESCRIPTION The TK11811 is a low power, low input voltage DC-DC converter. This device can be optimized for use in high or low current applications through component selection. The output voltage is selectable for 1.9 or 2.8 V operation and can be trimmed to any voltage in between. 20 P TK11811 VIN FB OSC T GND 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 TK11811 is available in a miniature SOT-23L surface mount package. VOUT BLOCK DIAGRAM VIN FB OSC VOUT ORDERING INFORMATION TK11811M Tape/Reel Code OSCILLATOR Vref T + TAPE/REEL CODE TL: Tape Left GND January 1999 TOKO, Inc. Page 1 TK11811 ABSOLUTE MAXIMUM RATINGS Input Voltage ............................................................ 16 V Power Dissipation (Note 1) ................................ 200 mW Junction Temperature ........................................... 150 °C Storage Temperature Range ................... -55 to +150 °C Operating Tem...