MP1567 2.6-6V, 1.2A Synchronous Rectified Step-Down Converter END OF LIFE MSOP10

MP1567 2.6-6V, 1.2A Synchronous Rectified Step-Down Converter END OF LIFE MSOP10

The MP1567 is a 1.2A, 800KHz DC to DC converter designed for low voltage applications requiring high efficiency.

Key Specifications

Features

• 1.2A Output Current
• Synchronous Rectified
• Internal 265mΩ and 220mΩ Power Switches
• VIN Range of 2.6V to 6V
• Over 90% Efficiency
• Zero Current Shutdown Mode
• Under Voltage Lockout Protection
• Soft-Start Operation
• Thermal Shutdown
• Internal Current Limit (Source & Sink)

Typical Application Circuit

Applications

• SOHO Routers, PCMCIA Cards, Mini PCI
• Handheld Computers, PDAs
• Cell Phones
• Digital Video Cameras
• Small LCD Displays "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