The TPS54331 device is a 28V, 3A asynchronous buck converter with integrated low-RDS high-end MOSFETs. To improve efficiency during light loads, the pulse jump Eco mode function is automatically activated. In addition, the 1μA turn-off power supply current allows the device to be used in battery-powered applications.
Current mode control with internal slope compensation simplifies external compensation calculations and reduces the number of components while allowing the use of ceramic output capacitors.
Resistance divider Programmable input undervoltage locking hysteresis. The overvoltage transient protection circuit limits voltage overshoot under start-up and transient conditions. Period-by-cycle current limiting schemes, frequency return-back and thermal turn-off protect devices and loads in the event of overload.
54331 chip Chinese information:
Usage: Power management \/DC-DC conversion circuit
Performance parameters: two-row patch 8-pin package. Designed to provide an adjustable output voltage with 3A output current as low as 0.8V at input voltages from 3.5V to 28V. The switching frequency is set internally to a rated frequency of 570kHz (hertz) Hertz. Provides adjustable slow start and undervoltage lock inputs. TPS54331EVM-232 The maximum absolute value of the input voltage is 30V. It is a dual phase power factor correction (PFC) controller with Natural Interleaving technology and the latest SWIFT DC\/DC power management converter.