1A Synchronous Step-down Converter with 11µA Iq in Ultra-small 1x1.5mm QFN

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The MP2148 is a monolithic, step-down, switchmode 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-bycycle 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.

Symmetry Electronics is an authorized Monolithic Power Systems distributor.


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Low IQ: 11A
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
120m? and 80m? Internal Power MOSFET Switches
Output Discharge
100% Duty Cycle
Short-Circuit Protection with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a QFN-6 (1.0mmx1.5mm) Package


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Monolithic Power Systems Datasheet

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