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reference designMP3422

Monolithic Power Systems MP3422

6.5A, 600kHz High Efficiency, Synchronous Step-Up Converter with Output Disconnect in 2x2mm QFN Package

Overview

TopologyBoost Converter
Input voltage2.8-4.2 V
Switching frequency440-760 kHz
Output 15 V / 2.5 A
IC revision1.01

Description

The MP3422 is a high-efficiency, synchronous, current–mode, step-up converter with output disconnect.

The MP3422 can start up from an input voltage as low as 1.9V while provide inrush current limiting, and output short-circuit protection. The integrated, P-channel, synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. The PMOS disconnects the output from the input when the part shuts down.

The 600kHz switching frequency allows for small external component, while the internal compensation and soft-start minimize external component count. The MP3422 provides small size solution for 5V/2.5A load from a supply voltage down to 2.8V.

The MP3422 is available in 14-pin QFN 2mmx2mm package.

Features

  • Up to 98% Efficiency
  • 1.9V to 5.5V Input Range
  • 2.5V to 5.5V Output Range
  • Internal Synchronous Rectifier
  • 600kHz Fixed Switching Frequency

  • 6.5A Switch Current Limit Capability

  • 43uA Quiescent Current
  • High Efficiency over Full Load Range
  • Internal Soft-start and Compensation
  • True Output Load Disconnect from Input
  • OCP, SCP, OVP and OTP Protection
  • Small 2x2mm QFN14 Package

Typical applications

  • USB Power Supply
  • Consumer Electronic Accessories
  • Tablets
  • Power Banks, Juice Packs, Battery Back-up Units
  • Battery-Powered Products

More information

Parts approved by Monolithic Power Systems

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
SamplesAvailability & Sample
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744311150
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 13.8 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.5 µH
Performance Rated Current13.8 A
Saturation Current @ 10%4.5 A
Saturation Current @ 30%14 A
DC Resistance6.6 mΩ
Self Resonant Frequency72 MHz
MaterialSuperflux 
Packaging Unit1000 
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