Product Summary

The TPS54331EVM-232 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1 μA shutdown supply current allows the TPS54331EVM-232 to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output Package capacitors. Applications of the TPS54331EVM-232 include: Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers, Industrial and Car Audio Power Supplies, 5V, 12V and 24V Distributed Power Systems.

Parametrics

TPS54331EVM-232 absolute maximum ratings: (1)Input Voltage: VSENSE –0.3 to 3 V, COMP –0.3 to 3 V, SS –0.3 to 3 V; (2)Output Voltage: PH –0.6 to 30 V, PH (10 ns transient from ground to negative peak) –5 V; (3)Source Current: EN 100 mA, BOOT 100 mA, VSENSE 10 mA, PH 9 A; (4)Electrostatic Discharge (HBM): 2 kV; (5)Electrostatic Discharge (CDM): 500 V; (6)Operating Junction Temperature: –40 to 150 ℃; (7)Storage Temperature: –65 to 150 ℃.

Features

TPS54331EVM-232 features: (1)3.5V to 28V Input Voltage Range; (2)Adjustable Output Voltage Down to 0.8V; (3)High Efficiency at Light Loads with a Pulse Skipping Eco-mode; (4)Fixed 570kHz Switching Frequency; (5)Typical 1μA Shutdown Quiescent Current; (6)Adjustable Slow Start Limits Inrush Currents; (7)Programmable UVLO Threshold; (8)Overvoltage Transient Protection.

Diagrams

TPS54331EVM-232 pin connection

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