Monolithic Power Systems MP2143H

Description

The MP2143H is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.

Constant-on-time control provides fast transient response and eases loop stabilization. Fault-condition protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2143H is available in small QFN-10 package and requires only a minimal number of readily-available standard external components.

The MP2143H is ideal for a wide range of applications including high-performance DSPs, FPGAs, and portable instruments.

Features

• -Wide 2.5V to 5.5V Operating Input Range
• -Output Voltage as Low as 0.6V
• -100% Duty Cycle in Dropout
• -Up to 3A Output Current
• -80mΩ and 40mΩ Internal Power MOSFET Switches
• -Default 2.0MHz Switching Frequency
• -EN and Power-Good for Power Sequencing
• -Cycle-by-Cycle Over-Current Protection
• -Auto Discharge at Power Off
• -Short-Circuit Protect with Hiccup Mode
• -Stable with Low-ESR Output Ceramic Capacitors
• -Available in QFN-10 (2mmx3mm) Package

Typical applications

• Wireless/Networking Cards
• Handheld/Battery-powered Systems
• Low Voltage I/O System Power

More information

• Datasheet
• IC product information