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reference designMP2305S

Monolithic Power Systems MP2305S

2A, 23V Synchronous Rectified Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4.75-23 V
Switching frequency305-375 kHz
Output 15 V / 2 A
IC revision1.02

Description

The MP2305S is a monolithic synchronous buck regulator. The device integrates a 175mΩ high-side MOSFET and a 115mΩ low-side MOSFET that provide 2A continuous load current over a wide operating input voltage of4.75V to 23V. Current mode control provides fast transient response and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current at turn-on. Shutdown mode drops the supply current to 1μA.

This device, available in an 8-pin SOIC package, provides a very compact system solution with minimal reliance on external components.

Features

  • -2A Output Current
  • -Wide 4.75V to 23V Operating Input Range
  • -Integrated Power MOSFET Switches
  • -Output Adjustable from 0.923V to 20V
  • -Up to 95% Efficiency
  • -Programmable Soft-Start
  • -Stable with Low ESR Ceramic Output Capacitors
  • -Fixed 340KHz Frequency
  • -Cycle-by-Cycle Over Current Protection
  • -Input Under Voltage Lockout

Typical applications

  • Notebook Computers
  • FPGA, DSP, ASIC Power Supplies
  • Networking Systems
  • Green Electronics/ Appliances
  • Distributed Power Systems

More information

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744066150
SPECWE-TPC SMT Tiny Power Inductor, 15 µH, 3 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance15 µH
Rated Current3 A
Saturation Current3.25 A
Self Resonant Frequency16 MHz
MountSMT 
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