TPS40200 Datasheet | Texas Instruments

Product Folder Sample & Buy Technical Documents Tools & Software Support & munity SLUS659G - FEBRUARY 2006 - REVISED NOVEMBER 2014 TPS40200 Wide Input Range Non-Synchronous Voltage Mode Controller 1 Features - 1 Input Voltage Range 4.5 V to 52 V - Output Voltage (700 m V to 90% VIN) - 200-m A Internal P-channel FET Driver - Voltage Feed-Forward pensation - Undervoltage Lockout - Programmable Fixed-Frequency (between 35 k Hz and 500 k Hz) Operation - Programmable Short-Circuit Protection - Hiccup Overcurrent Fault Recovery - Programmable Closed-Loop Soft-Start - 700 m V 1% Reference Voltage - External Synchronization - Small 8-Pin SOIC (D) and VSON (DRB) Packages 2 Applications - Industrial Control - Distributed Power Systems - DSL/Cable Modems - Scanners - Tele 3 Description The TPS40200 is a flexible, non-synchronous controller with a built-in 200-m A driver for P-channel FETs. The circuit operates with inputs up to 52 V with a power-saving feature that turns off driver current once the external FET has been fully turned on. This feature extends the flexibility of the device, allowing it to operate with an input voltage up to 52 V without dissipating excessive power. The circuit operates with voltage-mode feedback and has feed-forward input voltage pensation that responds instantly to input voltage change. The integral 700-m V reference is trimmed to 2%, providing the means to accurately control low voltages. The TPS40200 is available in an 8-pin SOIC and an 8-pin VSON package and supports many of the Features of more plex controllers. Clock frequency, soft-start, and overcurrent limits are each easily programmed by a single, external ponent. The part has undervoltage lockout, and can be easily synchronized to other controllers or a system clock to satisfy sequencing and/or noise-reduction...