MP1477H

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17V, 3A, 1.2MHz, High-Efficiency, Synchronous, Step-Down Converter in a SOT563 Package


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製品説明

The MP1477H is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP1477H offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide input range. The MP1477H uses synchronous-mode operation for higher efficiency over the output current-load range. Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation.
Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown. The MP1477H requires a minimal number of readily available, standard, external components and is available in a space-saving SOT563 (1.6mmх1.6mm) package.

Configurable

製品の特長

  • Wide 4.2V to 17V Operating Input Range
  • 58mΩ/25mΩ Low RDS(ON) Internal Power MOSFETs
  • 200µA Low IQ 
  • High-Efficiency Synchronous Mode Operation
  • Forced PWM Mode Operation
  • Fast Load Transient Response
  • 1.2MHz Switching Frequency
  • Internal Soft Start (SS)
  • Over-Current Protection (OCP) and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in a SOT563 (1.6mmх1.6mm) Package

パラメータ

  • fsw (max) (kHz)1200
  • Vin (min) (V)4.2
  • Vin (max) (V)17
  • Iout (max) (A)3
  • Isw Limit (typ) (A)4
  • Vfb (V)0.805
  • Iq (typ) (mA)0.2
  • Regulated Outputs1
  • Vout (max) (V)10
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageSOT563
  • Control ModeCOT
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification

High-Efficiency, 1.2MHz, 3A, 17V Step-Down Converter Evaluation Board

The EV1477H-TF-00B evaluation board is designed to demonstrate the capabilities of MPS’s MP1477H, a fully integrated, high-frequency, synchronous rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 3A continuous output current over a wide input range, with excellent load and line regulation. The MP1477H has synchronous mode operation for higher efficiency over the output current load range.

Constant-on-time control operation provides very fast transient response and easy loop design as well as very tight output regulation.

Full protection features include SCP, OCP, UVP, and thermal shutdown.

The MP1477H requires a minimal number of readily-available, standard, external components, and is available in a space-saving SOT563 (1.6mmх1.6mm) package.

¥2,716.25 + tax


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