XC9237A3KDMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237A3KDMR-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It features a built-in P-channel MOS driver transistor and N-channel MOS switching transistor, supporting an input voltage range of 2.0V to 6.0V. The device provides a fixed output voltage of 3.15V with a maximum output current of 600mA. It operates at a switching frequency of 3MHz and utilizes automatic PWM/PFM control for high efficiency across load ranges. The IC includes UVLO, soft-start, and current limit functions, packaged in SOT-25-5.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification with built-in driver and switching transistors
• Supports automatic switching between PWM and PFM modes for optimized efficiency
• Includes under-voltage lockout and internal soft-start circuitry

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems with single-cell lithium-ion inputs
• Embedded circuits needing stable 3.15V regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'DMR-G' against official Torex documentation to confirm tape-and-reel packaging specifications and RoHS compliance status. Ensure the fixed output voltage variant matches the target application requirements before procurement. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.15V output is required from a 2V to 6V input source. The 3MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the automatic PWM/PFM mode for applications requiring high efficiency during light-load conditions without manual mode switching.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the XC9237 series of synchronous step-down converters. The series distinguishes itself through built-in driver transistors and selectable switching frequencies. The XC9237 variant specifically offers manual or automatic mode selection, providing flexibility for different load response requirements within portable electronics designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution lists for direct equivalents. Verify pin compatibility and electrical parameters if considering alternative models within the same family.