XC9236B3ACMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9236B3ACMR-G is a synchronous step-down DC/DC converter from the Torex Semiconductor XC9236 series. It features a fixed output voltage of 3.05 V and supports an output current of 600 mA. The device operates within an input voltage range of 2.0 V to 6.0 V. It utilizes automatic PWM/PFM switching control to maintain high efficiency across varying load conditions. The component incorporates a built-in oscillator with a selectable switching frequency of 1.2 MHz or 3.0 MHz. It includes internal protection functions such as over-current protection and thermal shutdown. The unit is housed in a compact SOT-25-5 package suitable for surface mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automatic switching between PWM and PFM modes for optimized efficiency at light and heavy loads
• Built-in synchronous rectification with low on-resistance driver and switching transistors
• Integrated soft-start and over-current protection circuits
• Compatible with external ceramic capacitors due to high-frequency operation

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices
• Mobile communication equipment power supplies
• Embedded systems requiring stable low-voltage regulation
• Consumer electronics with space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'B3' confirms the 3.05 V fixed output voltage variant. Ensure the 'CMR-G' designation matches the required SOT-25-5 packaging and reel quantity specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference the exact part number against distributor catalogs to avoid confusion with similar XC9236 series variants that may differ in output voltage or control mode.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.05 V output is required without external resistor networks. Consider the 600 mA current limit for moderate load applications. Evaluate the 1.2 MHz or 3.0 MHz frequency options based on passive component size constraints. Compare against adjustable variants if flexible output voltage is needed. Assess thermal performance requirements given the SOT-25-5 package limitations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9236 series of synchronous buck converters designed for portable applications. It shares architectural similarities with the XC9235 and XC9237 series but distinguishes itself through automatic mode switching. The series emphasizes high efficiency and small external component count, utilizing built-in MOSFETs to reduce board space.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9236 series parts with identical 3.05 V output and 600 mA rating, such as XC9236B3ACMR. Verify pin compatibility and control mode alignment before substitution.