XC9237A1AC4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237A1AC4R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It operates with an input voltage range of 2 V to 6 V and provides a fixed output voltage of 1.2 V at a maximum output current of 600 mA. The device features a switching frequency of 1.2 MHz and a typical quiescent current of 15 uA. It is housed in a compact 6-pin XDFN package (XDFN-B, 1.6x1.2 mm) with an exposed pad. The component supports operation within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for high conversion efficiency
• Integrated power MOSFETs for compact solution design
• Fixed internal feedback resistor network simplifies application circuitry

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded circuits needing stable low-voltage regulation from higher bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'C4' corresponds to the required XDFN-B package variant during procurement. Confirm that the fixed 1.2 V output aligns with target load requirements, as adjustable variants utilize different suffix codes. Ensure compatibility with standard surface-mount reflow profiles for the specified plastic package.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 1.2 V output is required rather than an adjustable configuration. The 600 mA current capability suits moderate-load applications. Consider the 1.2 MHz switching frequency for balancing component size against electromagnetic interference. Verify that the 2 V minimum input voltage meets the lowest expected battery discharge level.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9237 series of synchronous buck converters. The series offers various output voltage options and packaging styles. The XC9237A1AC4R-G specifically denotes the A-series variant with a fixed 1.2 V output in the small XDFN-B package, distinguishing it from adjustable versions or larger SOT packages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9237 series parts with identical 1.2 V output and XDFN-B packaging, such as XC9237A1AC4R-TR-FE if pinout compatibility is confirmed. Cross-reference electrical specifications carefully, as adjacent models may differ in quiescent current or switching frequency.