Power requirements often move during development, and that is where a simple rail change can become a larger board update than expected. Torex is targeting that practical issue with the XC9714 Series, a synchronous step-down DC/DC converter that supports up to 36 V input and 2.0 A output while keeping the same pin configuration as existing high-voltage products such as the XC9711 and XC9702.
The XC9714 is a synchronous step-down DC/DC converter with built-in N-channel driver FETs used to generate regulated lower-voltage rails from higher supply voltages. In a typical industrial controller or mixed-voltage board, this kind of converter usually sits between a 24 V class rail and downstream logic, interface, or peripheral supplies.
Pin Compatibility Reduces Redesign Pressure
The most useful part of this release is the pin compatibility. Torex says the XC9714 keeps the same pin configuration as existing high-voltage devices even though the voltage and output current specifications differ. That gives engineers more room to adjust power specifications without automatically forcing a wider PCB redesign. Converter changes rarely stay isolated to the converter. Once the pinout shifts, the layout often follows, and the rest of the power section can end up back under review. Keeping that contained is a real design advantage.
Two Control Modes Support Different Rail Behavior
The XC9714 supports 4.5 V to 36 V input, adjustable output from 2.5 V to 18.0 V, and output current up to 2.0 A. It switches at 800 kHz and allows selection between PWM control and PWM/PFM control through the MODE pin. That split is useful because different rails need different behavior. Fixed PWM keeps switching frequency constant, which helps when noise needs to stay predictable. PWM/PFM control lowers quiescent current to 9 μA, which is more relevant in systems that spend long periods at light load.
Sequencing And Protection Are Built In
Output voltage is set with external resistors, so the same part number can support multiple supply targets. The EN/SS pin also allows external adjustment of soft-start time, and the Power Good function provides output monitoring for rail sequencing. Protection features include current limit, output overvoltage protection, thermal shutdown, and Lx pin short-circuit protection. The XC9714 is a 36 V buck converter with enough flexibility around pinout, operating mode, and rail control to make board updates easier to manage when requirements change.
Learn more and read the original announcement at www.torexsemi.com
Technology Overview
The XC9714 Series is a synchronous step-down DC/DC converter with built-in N-channel driver FETs. It supports 4.5 V to 36 V input, adjustable output from 2.5 V to 18.0 V, and output current up to 2.0 A, with selectable PWM or PWM/PFM operation at 800 kHz. It is used to generate regulated lower-voltage rails from higher-voltage system supplies.
View the XC9714 datasheet
Frequently Asked Questions
What is the XC9714 used for?
The XC9714 is used as a step-down DC/DC converter for generating regulated lower-voltage rails from input supplies up to 36 V.
What operating modes does the XC9714 support?
The XC9714 supports PWM control and PWM/PFM control, selectable through the MODE pin.
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