Monolithic Power Systems MP2143

Description

The MP2143 is a monolithic, step-down, switchmode 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. Faultcondition protections include cycle-by-cycle current limiting and thermal shutdown.The MP2143 is available in small TSOT23-8 package and requires only a minimal number of readily-available standard external components.The MP2143 is ideal for a wide range of applications including high-performance DSPs, FPGAs, smartphones, portable instruments, and DVD drivers.

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
• Low IQ: 40µA
• 80mΩ and 40mΩ Internal Power MOSFET Switches
• Default 1.2MHz 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 a TSOT23-8 Package

Typical applications

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

More information

• Datasheet
• IC product information