IC manufacturers Monolithic Power Systems

IC manufacturers (99)

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 12.5 V / 3 A
Output 21.8 V / 3 A
Output 33.3 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

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
Mount Samples
7440650068SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TPC SMT Tiny Power Inductor 6.8 4.2 3.6 30 SMT
Order Code Data­sheet Simu­lation
7440650068SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
Mount Samples