IC manufacturers Monolithic Power Systems

IC manufacturers (104)

Monolithic Power Systems MP9403

3A, 7V, 250kHz Integrated Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4.3-7 V
Switching frequency215-285 kHz
Output 15.5 V / 3 A
IC revision0.9

Description

The MP9403 is a monolithic synchronous buck regulator. The device integrates a 150mΩ high-side MOSFET and a 100mΩ low-side MOSFET that provides 3A continuous load current over input voltage of 4.3V to 7V. Current mode control provides fast transient response and cycle-by-cycle current limit.An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops to 1μA.This device, available in an 8-pin SOIC package with exposed pad, provides a very compact system solution with minimal reliance on external components.

Features

  • 3A Output Current
  • 4.3V to 7V Operating Input Range
  • Integrated MOSFET Switches
  • Output Adjustable from 0.80V to 5.50V
  • Up to 93% Efficiency
  • Programmable Soft-Start
  • Stable with Low ESR Ceramic Output Capacitors
  • Fixed 250kHz Frequency
  • Cycle-by-Cycle Over Current Protection
  • Input Under Voltage Lockout
  • Thermally Enhanced 8-Pin SOIC Package

Note:Refer page no 7 for Inductor selection guide.

Typical applications

  • Notebook Computers
  • Pre-Regulator for Linear Regulators
  • Distributed Power Systems

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IR(A)
ISAT(A)
fres(MHz)
Mount
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
SPECWE-TPC SMT Tiny Power Inductor, 10 µH, 3.9 A
Simu­lation
Availability
Status Activei| Production is active. Expected lifetime: >10 years.
Inductance10 µH
Rated Current3.9 A
Saturation Current4 A
Self Resonant Frequency20 MHz
MountSMT 
Check availability