原装正品 优势价格

The TPS40200 is a flexible non-synchronous controller with a  built in 200-mA 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 compensation that responds instantly to input voltage  change. The integral 700-mV reference is trimmed to 2%, providing the  means to accurately control low voltages. The TPS40200 is available in  and 8-pin SOIC and an 8-pin QFN package and supports many of the  features of more complex controllers. Clock frequency, soft-start, and  overcurrent limit are each easily programmed by a single, external  component. The part has undervoltage lockout, and can be easily  synchronized to other controllers or a system clock to satisfy  sequencing and/or noise-reduction requirements.