MP2147

Active

5.5V, 4A, 1.2MHz High-Efficiency, 40uA Iq COT Step-Down Switcher with PG and mode selection



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Product Description

The MP2147 is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.
Constant-on-time control provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. 
The MP2147 is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components.
The MP2147 is ideal for a wide range of applications, including storage (SSD, HDD), high-performance DSPs, FPGAs, and distributed power systems.

Programmable

Product Features

  • Up to 4A Output Current
  • Wide 2.8V-to-5.5V Operating Input Range
  • 22mΩ and 14mΩ Internal Power MOSFETs
  • 40µA Quiescent Current
  • 1.2MHz Fixed Switching Frequency
  • 1% Feedback Accuracy
  • External Mode Control
  • External VCON Control
  • Adjustable Output from 0.6V
  • 1.5ms Internal SS Time with Pre-Bias Startup
  • Cycle-by-Cycle Over Current Protection
  • Short Circuit Protection with Hiccup Mode
  • Stable with Low-ESR Output Ceramic Capacitors
  • Thermal Shutdown
  • Available in a 2mm×3mm QFN Package
  • Output Discharge Function

Parametrics

  • fsw (max) (kHz)1200
  • Vin (min) (V)2.8
  • Vin (max) (V)5.5
  • Iout (max) (A)4
  • Isw Limit (typ) (A)8.1
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.04
  • Regulated Outputs1
  • Vout (max) (V)5.5
  • Vout (min) (V)0.6
  • GradeCatalog
  • PackageQFN-12 (2x3)
  • Control ModeCOT
  • Common FeaturesLight-Load Efficiency, Power Good, Synchronous Rectification
  • Special FeaturesDynamic Voltage Scaling

Evaluation Kit

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Kit details

The MP2147 is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.

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

The MP2147 is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components.

The MP2147 is ideal for a wide range of applications, including storage (SSD, HDD), high-performance DSPs, FPGAs, and distributed power systems.

US$ 25.00 + tax