XC9237C28C4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C28C4R-G is a synchronous step-down DC/DC converter from the Torex XC9237 series. It features a fixed output voltage of 2.8V and supports an output current of 600mA. The device operates with an input voltage range of 2.0V to 6.0V and utilizes a 1.2MHz switching frequency. It employs PWM control mode with manual switching capability between PWM and auto PWM/PFM modes for optimized efficiency across load ranges. The component is housed in a USPEL-6 (1.8x2mm) package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Manual switching between PWM and auto PWM/PFM control modes allows optimization for both light-load efficiency and heavy-load stability.
• Integrated P-channel MOS driver and N-channel MOS switch transistors enable high-efficiency synchronous rectification.
• Designed for minimal external component count, requiring only one inductor and two capacitors for operation.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment utilizing lithium-ion or lithium-polymer cells
• Embedded systems needing stable low-voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix C4R-G corresponds to the USPEL-6 package and reel packaging configuration. Confirm the fixed output voltage matches the design requirement of 2.8V. Ensure compatibility with the required input voltage range of 2.0V to 6.0V. Check RoHS compliance status if restricted substances are a constraint for the target application.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 2.8V output is required without external resistor programming. Choose the XC9237 series over XC9235 or XC9236 variants if manual control over the switching mode (PWM vs. Auto PWM/PFM) is necessary for specific transient response requirements. Consider the USPEL-6 package dimensions for PCB layout constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9237 series of synchronous buck converters manufactured by Torex Semiconductor. The series is characterized by low standby current consumption and high efficiency. The XC9237 variant specifically offers flexible control mode selection, distinguishing it from the fixed-mode XC9235 and auto-switching XC9236 series.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the control mode of the XC9237C28C4R-G?

It supports manual switching between PWM control mode and auto PWM/PFM switching control mode.

Does this part require external resistors to set the output voltage?

No, the 'C' suffix indicates a fixed output voltage type, which is 2.8V for this specific model.