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IC manufacturers XYSemi

IC manufacturers (79)

XYSemi XM5251

2.5A 1.5MHz Synchronous Step-Down DC/DC Converter

Overview

Topology Buck Converter
Input voltage 3.3 V
Switching frequency 1200-1800 kHz
Output 1 2.5 V
IC revision 0.4

Description

The XM5251 synchronous buck converter is a high frequency step-down voltage regulator with current control mode. It can output 2.5A with excellent line and load regulation. The current is only 130uA at operating and less than 1uA at shutdown. This device is the ideally solution for small space and battery powered consume application, such as cellular phone and Hand-held device. The XM5251 integrates PWM controller, power switch and compensation network, required only five components to implement a 2.5A output switching power supply. It has internal fixed 1.5MHz frequency and makes application circuit smaller. The XM5251 is available in an adjustable output voltage version. The adjustable version has wide output range from 0.6V to VIN. The XM5251 series products are available in a QFN3X3-16L package.

Features

  • 2.5V to 5.5V Input Range
  • 2.5A Output Capability
  • High Efficiency up to 95%
  • Low Quiescent Current 130uA
  • Adjustable Output Voltage from 0.6V toVIN
  • 1.5MHz Constant Frequency Operation
  • Low Dropout Operation: 100% DutyCycle
  • Under Voltage Lockout, Over Current,Short Current, and Thermal Protection
  • Operating Temperature: -40oC to +85°C
  • Available in very tiny QFN3X3-16LPackage
  • RoHS Compliant and 100% Lead(Pb)-Free

Typical applications

  • Board Mounted Power Supplies
  • DSP Core Supplies
  • Handheld Instruments
  • MP3/4 Player

Products

Order Code Data­sheet Downloads Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples
744373240022
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-LHMI SMT Power Inductor 0.22 9.5 17 6.6 7.3 195 SMT
Order Code Data­sheet
744373240022
Samples
Order Code Data­sheet Downloads Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples