XC9260 Series

1.5A COT Control, Synchronous Step-Down DC/DC Converters

The XC9260 series is a group of synchronous-rectification type DC/DC converters with a built-in P-channel MOS driver transistor and N-channel MOS switching transistor, designed to allow the use of ceramic capacitors.

Output voltage is internally set in a range from 0.8V to 3.6V (2.0%) increments of 0.05V. The device provides a high efficiency, stable power supply with an output current of 1.5A to be configured using only a coil and two capacitors connected externally. Oscillation frequency is set to 1.2MHz or 3MHz can be selected for suiting to your particular application.

During stand-by, all circuits are shutdown to reduce current consumption to as low as 1.0μA or less. As for the soft-start function as fast as 0.30ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF when input voltage becomes 2.0V or lower. The B types integrate CL High Speed discharge function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge.

Two types of package SOT-89-5, USP-6C are available.

(*) HiSAT-COT is an original Torex term for High Speed Transient Response.

Your news

Jul 9, 2014
Product News
【New Product Leaflet】XC9260/XC9261
Aug 28, 2013
Product News
1.5A Synchronous Step-Down DC/DC Converters with High Speed Transient Response HiSAT-COT Control XC9260/XC9261 Series

Typical Application Circuit

Features

Input Voltage Range 2.7V~5.5V
Output Voltage Range 0.8V~3.6V(±2.0%)
Quiescent Current 25μA(fOSC=3.0MHz)
Output Current 1.5A
Oscillation Frequency 1.2MHz
3.0MHz
Efficiency 90%
(VIN=3.7V,VOUT=1.8V,IOUT=200mA)
Control Methods HiSAT-COTControl
100% Duty Cycle
PWMControl
Protection Circuits Thermal Shut Down
Current Limit Circuit (Pendent character)
Short Circuit Protection(TypeB)
Functions Soft-Start
UVLO
CL High Speed Auto Discharge(TypeB)
Capacitor Low ESR Ceramic
Operating Ambient Temperature -40℃~+105℃
Environmentally Friendly EU RoHS Compliant, Pb Free

Packages

DATA SHEET

Technical Document

Quality Reports

FAQ

QuestionWhat is the soft-start function?
Answer

The function to soften the rise to prevent the inrush current.

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