IC manufacturers Monolithic Power Systems

IC manufacturers (104)

Monolithic Power Systems MP2905

3V-28V Input, Hysteretic Synchronous Step-Down Controller

Overview

TopologyBuck Converter
Input voltage12 V
Switching frequency200-500 kHz
Output 11.8 V / 25 A
IC revision1.0

Description

The MP2905 is a hysteretic voltage-mode control,synchronous PWM buck controller. The output voltage can be regulated from 0.6V to 0.9*VIN. Itachieves high output current over a wide input supply range from 3V-28V.

MP2905 integrates an internal LDO regulator that makes the controller function at a wide input supply.

Hysteretic voltage-mode control provides fast transient response without additional loop compensation.

An adjustable soft-start prevents inrush current at turn-on. The device senses high-side switch voltage drop for hiccup current limit and shortcurrent protection. The frequency is adjustable from 200kHz to 500kHz.

The MP2905 is available in 10-pin MSOP package, provides a very compact system solution with minimal reliance on external components.

Features

  • Wide 3V to 28V Operating Input Range
  • Output Adjustable from 0.6V to 0.9*Vin
  • Switching frequency from 200kHz to 500kHz
  • Programmable Soft-Start
  • Hiccup current limit
  • Lossless peak current sensing
  • MSOP-10 package

Typical applications

  • Graphic-Card Power Supplies
  • Motherboard Power Supplies
  • AGP and PCI-Express Power Supplies
  • Set-Top Boxes
  • Point-of-Load Power Supplies

Products

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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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SPECWE-HCI SMT Flat Wire High Current Inductor, 0.82 µH, 44.5 A
Simu­lation
Availability
Status Activei| Production is active. Expected lifetime: >10 years.
Inductance0.82 µH
Performance Rated Current44.5 A
Saturation Current @ 10%15 A
Saturation Current @ 30%35 A
DC Resistance0.9 mΩ
Self Resonant Frequency72 MHz
MaterialWE-PERM 
Packaging Unit400 
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