MP8352 3-6V, 6A, 600kHz Step-Down Converter QFN14

MP8352 3-6V, 6A, 600kHz Step-Down Converter QFN14

The MP8352 is a monolithic step-down switch mode converter with a built in internal power MOSFET.

Key Specifications

Features

• 3V to 6V Operating Input Range
• 6A Continuous Output Current
• 45mΩ Internal Power MOSFET Switch
• External Power Supply Vcc
• Power Good Indicator
• Synchronous Gate Driver Delivers up to 95% Efficiency
• Fixed 600KHz Frequency
• Synchronizable Up to 1.5MHz
• Cycle-by-Cycle Over Current Protection with Hiccup
• Thermal Shutdown

Typical Application Circuit

Applications

• Point of Load Regulator in Distributed Power System
• Digital Set Top Boxes
• Personal Video Recorders
• Broadband Communications
• Flat Panel Television and Monitors "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

Design Notes

• Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
• The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
• Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
• Route the feedback divider from the output capacitor terminals, away from the switch node.

Common Questions