MP8758H

Active
10A, 22V, Synchronous Step-Down Converter with Hiccup OCP, PFM/PWM Mode Selection


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Product Description

The MP8758H is a fully integrated, high-frequency, synchronous, rectified, step-down converter. It offers a very compact solution to achieve a 10A output current with excellent load and line regulation over a wide input supply range. The MP8758H employs a constant-on-time (COT) control scheme, which provides fast transient response and eases loop stabilization. The COT control scheme provides a seamless transition into PFM mode at light-load operation, which boosts light-load efficiency. An open-drain power good signal indicates that the output voltage is within its nominal voltage range. Full protection features include over-current protection (OCP), over-voltage and under-voltage protection (OVP, UVP), and thermal shutdown. The MP8758H requires a minimal number of readily available, external components and is available in a QFN-21 (3mmx4mm) package.

Programmable

Product Features

  • Wide 4.5V to 22V Operating Input Range
  • 10A Continuous Output Current
  • Low RDS(ON) Internal Power MOSFETs
  • Proprietary Switching Loss Reduction
  • Internal Soft Start
  • Output Discharge
  • 500kHz Switching Frequency
  • PFM/PWM Mode Selection
  • Hiccup Mode, OCP, OVP, and UVP
  • Auto-Retry Thermal Shutdown
  • Output Adjustable from 0.604V

Parametrics

  • fsw (max) (kHz)500
  • Vin (min) (V)4.5
  • Vin (max) (V)22
  • Iout (max) (A)10
  • Isw Limit (typ) (A)11
  • Vfb (typ) (V)0.604
  • Iq (typ) (mA)0.19
  • Regulated Outputs1
  • Vout (max) (V)5.5
  • Vout (min) (V)0.604
  • GradeCatalog
  • 封装QFN-21 (3x4)
  • Control ModeCOT
  • Common FeaturesLight-Load Efficiency, Power Good, Synchronous Rectification
  • 特性Output Discharge

Reference Materials