TPS40200D TPS40200DR 40200 SOP8 Switching Controllers Integrated Circuits (ICs)

1 Features

Input Voltage Range 4.5 Vto 52 V
Output Voltage(700 mV to 90% VN)
200-mA Internal P-channel FET Driver
.Voltage Feed-Forward Compensation
Undervoltage Lockout
Programmable Fixed-Frequency(between 35 kHz
and 500 kHz)Operation
Programmable Short-Circuit Protection
Hiccup Overcurrent Fault Recovery
Programmable Closed-Loop Soft-Start
700 mV 1% Reference Voltage
External Synchronization
Small 8-Pin SOIC(D)and VSON(DRB)Packages

2 Applications

industrial Control
Distributed Power Systems
DsUCable Modems
Scanners
Telecom

3 Description

The TPS40200 is afexiblenon-synchronous
controller with a built-in 200-mA driver for P-channel
FETs. The circuit operates with inputs up to 52Vwith
a powersaving feature that turns offdriver current
once the external FET has been fully tuned on.This
feature extends the flexibility of the deviceallowing 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-mVreference 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 ysoN package and
supports many of the features of more complex
controllers. Clockfrequency.soft-startand
overcurrent limits are each easily

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