MP2457

New

36V, 0.6A, 2MHz, Synchronous, Step-Down Converter



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Product Description

The MP2457 is a high-frequency, step-down, switching regulator with integrated high-side and low-side power MOSFETs. The MP2457 can provide up to 0.6A of output current efficiently with current-mode control for fast loop response.

The wide 5V to 36V input range accommodates a variety step-down applications, and the 0.6μA shutdown mode quiescent current allows the device to be used in battery-powered applications. The MP2457 uses high duty cycle and low dropout mode for low input voltage conditions.

The MP2457 achieves high power conversion efficiency over a wide load range by scaling down the switching frequency under light-load conditions to reduce switching and gate driving losses.

Frequency foldback prevents short circuit and inductor current runaway during start-up. Thermal shutdown provides reliable and fault-tolerant operation.

The MP2457 is available in a cost-effective TSOT23-6 package.

Product Features

  • Meets 0.1% Output Voltage Ripple
  • Low Dropout Mode
  • 65μA Operating Quiescent Current
  • Light-Load Mode
  • >90% Efficiency
  • Dedicated Internal Compensation
  • Stable with Ceramic/Electrolytic Output Capacitors
  • Wide 5V to 36V Operating Input Range
  • 400mΩ/200mΩ Internal Power MOSFETs
  • 2MHz Fixed Switching Frequency
  • Internal Soft Start (SS)
  • Precision Current Limit without Current Sensing Resistor
  • Output Adjustable from 0.8V to 0.95∙VIN
  • Guaranteed Industrial Temperature Range Limits
  • Available in a TSOT23-6 Package

Parametrics

  • fsw (max) (kHz)2000
  • Vin (min) (V)5
  • Vin (max) (V)36
  • Iout (max) (A)0.6
  • Vfb (V)0.8
  • Iq (typ) (mA)0.065
  • GradeCatalog
  • PackageTSOT23-6
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification

36V,0.6A,2MHz, Synchronous, Step-Down Converter Evaluation Board

The EV2457-T-00A Evaluation Board is designed to demonstrate the capabilities of MPS’ MP2457, a high-frequency, step-down, switching regulator with integrated high-side and low-side power MOSFETs designed specifically for power meter applications. The MP2457 can provide up to 0.6A of output current efficiently with current-mode control for fast loop response.

The wide 5V to 36V input range accommodates a variety of power meter step-down applications, and the 0.6μA shutdown mode quiescent current allows the device to be used in battery-powered applications. The MP2457 uses high duty cycle and low dropout mode for low power meter input voltage conditions.

Frequency fold-back prevents short circuit and inductor current runaway during start-up. Thermal shutdown provides reliable and fault-tolerant operation. The MP2457 is available in a cost-effective TSOT23-6 package.

$25.00 + tax


Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.