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reference designMP2227

Monolithic Power Systems MP2227

24V, 3A, 1.3MHz Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage3-24 V
Switching frequency1000-1600 kHz
Output 11.5 V
Output 23.3 V
Output 31.2 V
Output 41.8 V
Output 52.5 V
IC revision1.1

Description

The MP2227 is an internally compensated 1.3MHz fixed frequency PWM synchronous step-down regulator. MP2227 operates from a 3V to 24V input and generates an adjustable output voltage from 0.8V to 0.9xVIN at up to 3A load current.

The MP2227 integrates a 160mΩ high-side switch and an 80mΩ synchronous rectifier for high efficiency without an external Schottky diode. With peak current mode control and internal compensation, it is stable with anoutput ceramic capacitor and a small inductor. Fault protection includes hiccup short-circuit protection, cycle-by-cycle current limiting and thermal shutdown. Other features include frequency synchronization and soft-start.

The MP2227 is available in a small 3mm x 3mm 10-lead QFN package.

Features

  • 3A Output Current
  • Input Supply Range: 3V to 24V
  • 160mΩ high-side, 80mΩ low-side Internal Power MOSFET Switches
  • All Ceramic Output Capacitor Design
  • Up to 95% Efficiency
  • 1.3MHz Fixed Switching Frequency
  • Adjustable Output from 0.8V to 0.9xVIN
  • Internal LDO for VCC supply
  • 1MHz to 2MHz Frequency Synchronization
  • POK
  • Thermal Shutdown
  • Cycle-by-Cycle Current Limiting
  • Hiccup Short Circuit Protection
  • 10-lead, 3mm x 3mm QFN Package

Typical applications

  • Printers
  • Point of Load Regulators
  • Network Equipment
  • µP/ASIC/DSP/FPGA Core and I/O Supplies
  • Telecom Equipment
  • LCD TVs

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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744310055
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.52 µH, 19.2 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
–
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
Inductance0.52 µH
Performance Rated Current19.2 A
Saturation Current @ 10%8.5 A
Saturation Current @ 30%20 A
DC Resistance3.7 mΩ
Self Resonant Frequency140 MHz
MaterialSuperflux 
Packaging Unit1500 
–Check availability
744310095
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.95 µH, 14.4 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
–
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
Inductance0.95 µH
Performance Rated Current14.4 A
Saturation Current @ 10%5 A
Saturation Current @ 30%13 A
DC Resistance6.2 mΩ
Self Resonant Frequency90 MHz
MaterialSuperflux 
Packaging Unit1500 
–Check availability