MP5410 1.8-5.5V Low Start-up Voltage Boost Converter QFN16

MP5410 1.8-5.5V Low Start-up Voltage Boost Converter QFN16

The MP5410 is a high efficiency, current mode step-up converter with four single-pole/double- throw (SPDT) switches designed for low-power bias supply application.

Key Specifications

Features

• 1.8V Low Voltage Start-Up
• 1.8V to 5.5V Input Range
• Output Disconnection
• Integrated Power MOS & Schottky Diode
• Variable Frequency Control
• <1µA Shutdown Current
• Current Mode Control with Internal Compensation
• More than 80% Efficiency at Light Load Conditions
• Tiny External Components
• Inrush Current Limiting and Internal Soft- Start

Typical Application Circuit

Applications

• Dual-cell and Three-cell NiCd/NiMH or Single-cell Li Battery Consumer Products
• 3D Glass Driver
• Small LCD Displays Bias Supply
• Digital Still and Video Cameras
• Handheld Computers and PDAs
• Cell Phones For MPS green status, please visit MPS website under Quality Assurance. "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

Design Notes

• Rail sequencing order and delay are part of the SoC power-up contract; a wrong order latches the processor even though every rail is in spec.
• In multiphase designs, current balance depends on the loop matching between phases, so keep the layout symmetric.
• Digital interfaces (PMBus, I²C) need pull-ups to the correct rail and a defined state during power-up.
• Thermal design is a system problem here: the PMIC sits next to the load it feeds, so budget the shared copper, not the package alone.

Common Questions