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Design TPS40200-Q1
SLUS739F – SEPTEMBER 2006 – REVISED JANUARY 2016 TPS40200-Q1 Wide-Input-Range Nonsynchronous Voltage-Mode Controller
1 Features 3 Description The TPS40200-Q1 is a flexible, nonsynchronous
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 turned on
fully. 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 feedforward 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-Q1 is available in an 8-pin SOIC package
and supports many of the features of more complex
controllers. Clock frequency, soft start, and …
