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XYSemi XM5203

2A 1.5MHz Synchronous Step-Down DC/DC Converter

Overview

TopologyBuck Converter
Input voltage2.5-5.5 V
Switching frequency1200-1800 kHz
Output 12.5 V / 2 A
IC revision0.6

Description

The XM5203 synchronous buck converter is a high frequency step-down voltage regulator with current control mode. It can output 2A 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 XM5203 integrates PWM controller, power switch and compensation network, required only five components to implement a 2A output switching power supply. It has internal fixed 1.5MHz frequency and makes application circuit smaller.The XM5203 is available in an adjustable output voltage version. The adjustable version has wide output range from 0.6V to VIN. The XM5203 series products are available in a DFN3X3-10L package.

Features

  • 2.5V to 5.5V Input Range
  • 2A Output Capability
  • High Efficiency up to 95%
  • Low Quiescent Current 130uA
  • Adjustable Output Voltage from 0.6V to VIN
  • 1.5MHz Constant Frequency Operation
  • Low Dropout Operation: 100% Duty Cycle
  • Under Voltage Lockout, Over Current, Short Current, and Thermal Protection
  • Operating Temperature: -40oC to +85°C
  • Available in very tiny DFN3X3-10L Package
  • RoHS Compliant and 100% Lead(Pb)-Free

Typical applications

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

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples
74437324022
STE ALT EAG CAD LTS PSP SPE IGS CADWE-LHMI SMT Power Inductor 2.2 3.25 6.5 51 61 49 SMT
Order Code Data­sheet
74437324022
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples