Monolithic Power Systems MP2148

Description

The MP2148 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.

The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2148 is available in an ultra-small QFN-6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components.

The MP2148 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

Features

• -Low IQ: 11μA
• -2.2MHz Switching Frequency
• -EN for Power Sequencing
• -Power Good Only for Fixed Output Version
• -Wide 2.3V-to-5.5V Operating Input Range
• -Output Adjustable from 0.6V
• -Up to 1A Output Current
• -120mΩ and 80mΩ Internal Power MOSFET Switches
• -Output Discharge
• -Short-Circuit Protection with Hiccup Mode
• -Stable with Low ESR Output Ceramic Capacitors
• -Available in a QFN-6 (1.0mmx1.5mm) Package

Typical applications

• Portable and Mobile Devices
• Low Voltage I/O System Power
• •Wireless/Networking Cards
• Battery Powered /Wearable Devices

More information

• Datasheet
• IC product information