Inductor Built-in Step-up Converter “micro DC/DC”

The XCL103 series is a synchronous step-up "micro DC/DC" converter which integrates an inductor and a control IC in one tiny package (2.0mm×2.5mm, h=1.04mm). A stable step-up power supply is configured using only two capacitors connected externally. An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring.

A wide operating voltage range of 0.9V to 6.0V enables support for applications that require an internally fixed output voltage (2.2V to 5.5V).

During the devices enter stand-by mode, XCL103D type prevent the application malfunction by CL Discharge Function which can quickly discharge the electric charge at the output capacitor (CL). XCL103E type is able to drive Real Time Clock etc.

Feature

Input Voltage Range 0.9V ~ 6.0V
Output Voltage Range 2.2V ~ 5.5V (±2.0%)
0.1V increments
Input Current 0.8A
Output Current 500mA@VOUT=5.0V, VBAT=3.3V (TYP.)
350mA@VOUT=3.3V, VBAT=1.8V (TYP.)
Control Mode Selection Auto PWM/PFM
Oscillation Frequency 3.0MHz (±20%)
Protection Circuits Over-current limit (Integral latch method)
Output short-circuit protection
Functions Soft-start
Load Disconnection Function (D type)
CL Auto Discharge Function (D type)
Bypass Switch Function (E type)
Operating Ambient Temperature -40 ~ +85℃
Environmentally Friendly EU RoHS Compliant, Pb Free

Typical Application Circuit

Technical Document

Packages

Package Number of Pins Pcs/Reel Package Size(mm)
CL-2025-02 6 3,000 2.0 x 2.5 x 1.04

Evaluation Board

Series Name Evaluation Board No. Evaluation Board details Evaluation Board data Online Store
XCL103 Bare Board
XCL103-CL-2025-02-BB

Inductor Built-in Step-Up DC/DC Converter
Vin : 0.65V ~ 6.0V
Vout : 2.2V ~ 5.0V
Iout : 450mA@Vout=5.0V,VBAT=3.3V
fosc : 3.0MHz
Control Method: PWM/PFM
Vout Adjustment Method: Fixed

Package : CL-2025-02
TOREX Direct

XCL103 Series Part Numbers

Part number Sample Type Output Voltage Ocillation Frequency Package EDA Online Store
XCL103D223CR-G CL Auto-Discharge, Load Disconnection 2.2V 3MHz CL-2025-02
XCL103D233CR-G CL Auto-Discharge, Load Disconnection 2.3V 3MHz CL-2025-02
XCL103D243CR-G CL Auto-Discharge, Load Disconnection 2.4V 3MHz CL-2025-02
XCL103D253CR-G CL Auto-Discharge, Load Disconnection 2.5V 3MHz CL-2025-02
XCL103D263CR-G CL Auto-Discharge, Load Disconnection 2.6V 3MHz CL-2025-02
XCL103D273CR-G CL Auto-Discharge, Load Disconnection 2.7V 3MHz CL-2025-02
XCL103D283CR-G CL Auto-Discharge, Load Disconnection 2.8V 3MHz CL-2025-02
XCL103D293CR-G CL Auto-Discharge, Load Disconnection 2.9V 3MHz CL-2025-02
XCL103D303CR-G CL Auto-Discharge, Load Disconnection 3.0V 3MHz CL-2025-02
XCL103D313CR-G CL Auto-Discharge, Load Disconnection 3.1V 3MHz CL-2025-02
XCL103D323CR-G CL Auto-Discharge, Load Disconnection 3.2V 3MHz CL-2025-02
XCL103D333CR-G CL Auto-Discharge, Load Disconnection 3.3V 3MHz CL-2025-02
XCL103D343CR-G CL Auto-Discharge, Load Disconnection 3.4V 3MHz CL-2025-02
XCL103D353CR-G CL Auto-Discharge, Load Disconnection 3.5V 3MHz CL-2025-02
XCL103D363CR-G CL Auto-Discharge, Load Disconnection 3.6V 3MHz CL-2025-02
XCL103D373CR-G CL Auto-Discharge, Load Disconnection 3.7V 3MHz CL-2025-02
XCL103D383CR-G CL Auto-Discharge, Load Disconnection 3.8V 3MHz CL-2025-02
XCL103D393CR-G CL Auto-Discharge, Load Disconnection 3.9V 3MHz CL-2025-02
XCL103D403CR-G CL Auto-Discharge, Load Disconnection 4.0V 3MHz CL-2025-02
XCL103D413CR-G CL Auto-Discharge, Load Disconnection 4.1V 3MHz CL-2025-02
XCL103D423CR-G CL Auto-Discharge, Load Disconnection 4.2V 3MHz CL-2025-02
XCL103D433CR-G CL Auto-Discharge, Load Disconnection 4.3V 3MHz CL-2025-02
XCL103D443CR-G CL Auto-Discharge, Load Disconnection 4.4V 3MHz CL-2025-02
XCL103D453CR-G CL Auto-Discharge, Load Disconnection 4.5V 3MHz CL-2025-02
XCL103D463CR-G CL Auto-Discharge, Load Disconnection 4.6V 3MHz CL-2025-02
XCL103D473CR-G CL Auto-Discharge, Load Disconnection 4.7V 3MHz CL-2025-02
XCL103D483CR-G CL Auto-Discharge, Load Disconnection 4.8V 3MHz CL-2025-02
XCL103D493CR-G CL Auto-Discharge, Load Disconnection 4.9V 3MHz CL-2025-02
XCL103D503CR-G CL Auto-Discharge, Load Disconnection 5.0V 3MHz CL-2025-02
XCL103D513CR-G CL Auto-Discharge, Load Disconnection 5.1V 3MHz CL-2025-02
XCL103D523CR-G CL Auto-Discharge, Load Disconnection 5.2V 3MHz CL-2025-02
XCL103D533CR-G CL Auto-Discharge, Load Disconnection 5.3V 3MHz CL-2025-02
XCL103D543CR-G CL Auto-Discharge, Load Disconnection 5.4V 3MHz CL-2025-02
XCL103D553CR-G CL Auto-Discharge, Load Disconnection 5.5V 3MHz CL-2025-02
XCL103E223CR-G Bypass Switch 2.2V 3MHz CL-2025-02
XCL103E233CR-G Bypass Switch 2.3V 3MHz CL-2025-02
XCL103E243CR-G Bypass Switch 2.4V 3MHz CL-2025-02
XCL103E253CR-G Bypass Switch 2.5V 3MHz CL-2025-02
XCL103E263CR-G Bypass Switch 2.6V 3MHz CL-2025-02
XCL103E273CR-G Bypass Switch 2.7V 3MHz CL-2025-02
XCL103E283CR-G Bypass Switch 2.8V 3MHz CL-2025-02
XCL103E293CR-G Bypass Switch 2.9V 3MHz CL-2025-02
XCL103E303CR-G Bypass Switch 3.0V 3MHz CL-2025-02
XCL103E313CR-G Bypass Switch 3.1V 3MHz CL-2025-02
XCL103E323CR-G Bypass Switch 3.2V 3MHz CL-2025-02
XCL103E333CR-G Bypass Switch 3.3V 3MHz CL-2025-02
XCL103E343CR-G Bypass Switch 3.4V 3MHz CL-2025-02
XCL103E353CR-G Bypass Switch 3.5V 3MHz CL-2025-02
XCL103E363CR-G Bypass Switch 3.6V 3MHz CL-2025-02
XCL103E373CR-G Bypass Switch 3.7V 3MHz CL-2025-02
XCL103E383CR-G Bypass Switch 3.8V 3MHz CL-2025-02
XCL103E393CR-G Bypass Switch 3.9V 3MHz CL-2025-02
XCL103E403CR-G Bypass Switch 4.0V 3MHz CL-2025-02
XCL103E413CR-G Bypass Switch 4.1V 3MHz CL-2025-02
XCL103E423CR-G Bypass Switch 4.2V 3MHz CL-2025-02
XCL103E433CR-G Bypass Switch 4.3V 3MHz CL-2025-02
XCL103E443CR-G Bypass Switch 4.4V 3MHz CL-2025-02
XCL103E453CR-G Bypass Switch 4.5V 3MHz CL-2025-02
XCL103E463CR-G Bypass Switch 4.6V 3MHz CL-2025-02
XCL103E473CR-G Bypass Switch 4.7V 3MHz CL-2025-02
XCL103E483CR-G Bypass Switch 4.8V 3MHz CL-2025-02
XCL103E493CR-G Bypass Switch 4.9V 3MHz CL-2025-02
XCL103E503CR-G Bypass Switch 5.0V 3MHz CL-2025-02
XCL103E513CR-G Bypass Switch 5.1V 3MHz CL-2025-02
XCL103E523CR-G Bypass Switch 5.2V 3MHz CL-2025-02
XCL103E533CR-G Bypass Switch 5.3V 3MHz CL-2025-02
XCL103E543CR-G Bypass Switch 5.4V 3MHz CL-2025-02
XCL103E553CR-G Bypass Switch 5.5V 3MHz CL-2025-02

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