MP2212 3-6V, 3A, 600kHz Synchronous Step-Down Converter SOIC

MP2212 3-6V, 3A, 600kHz Synchronous Step-Down Converter SOIC

The MP2212 is an internally compensated 600kHz fixed frequency PWM synchronous step-down regulator.

Key Specifications

Features

• 3A Output Current
• Input Supply Range: 3V to 16V
• 80mΩ Internal Power MOSFET Switches
• All Ceramic Output Capacitors Design
• Up to 95% Efficiency
• 600kHz Fixed Switching Frequency
• Adjustable Output from 0.8V to 0.9xVIN
• Internal Soft-Start
• Frequency Synchronization Input
• Thermal Shutdown

Typical Application Circuit

Applications

• µP/ASIC/DSP/FPGA Core and I/O Supplies
• Printers and LCD TVs
• Network and Telecom Equipment

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