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MP2158A

High Efficiency, 1A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with better Vfb accuracy and better load regulation in QFN package

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Vin (Max) <= 7V
MP2158A

MP2158A

High Efficiency, 1A, 6V, 1.5MHz, 17uA Iq, COT Synchronous Step Down Converter with better Vfb accuracy and better load regulation in QFN package

Datasheet

Description

The MP2158A is a monolithic step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A of continuous output current from a 2.5V to 6V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
The constant-on-time control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
The MP2158A is available in a small QFN-8 (1.5mmx2mm) package and requires only a minimal number of readily available, standard, external components.
The MP2158A is ideal for a wide range of applications, including high-performance DSPs, FPGAs, PDAs, and portable instruments.

Features & Benefits

Very Low IQ of 17μA
Default 1.5MHz Switching Frequency
1.5% VFB Accuracy
EN and Power Good for Power Sequencing
Wide 2.5V to 6V Operating Input Range
Output Adjustable from 0.6V
Up to 1A of Output Current
100% Duty Cycle in Dropout
120mΩ and 90mΩ Internal Power MOSFET Switches
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a QFN-8 (1.5mmx2mm) Package

Active Part Numbers:

MP2158AGQH-P MP2158AGQH-Z

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Technical Forum

Questions answered by MPS engineers in 24h

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All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.

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