XD6239D291MR-Q

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The XD6239D291MR-Q is a high-speed LDO regulator from the XD6239 series, manufactured by Torex Semiconductor. It provides a fixed output voltage of 2.9V with an accuracy of ±1.0%. The device supports a maximum output current of 300mA and operates within an input voltage range of 2.0V to 6.0V. It features a supply current of 100μA and high ripple rejection of 75dB at 1kHz. The component includes built-in current limit and thermal shutdown protection circuits. It utilizes SOT-25 packaging and is compliant with AEC-Q100 Grade 1 standards for automotive applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Built-in inrush current protection circuit absent; D-type designation indicates lack of this specific feature compared to H-type variants.
• Integrated ON/OFF control function via EN pin allowing standby mode operation with low power consumption.
• Internal current limiter and thermal shutdown circuits provide robust protection against overload and overheating conditions.
• High ripple rejection capability ensures stable output voltage under varying load and input noise conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Automotive camera modules
• Automotive body control application systems
• Automotive infotainment drive recorders
• Electronic Toll Collection (ETC) systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify that the 'D' suffix confirms the absence of inrush current protection, distinguishing it from 'H' type parts. Confirm the 'MR-Q' suffix corresponds to the SOT-25 package and AEC-Q100 Grade 1 qualification. Ensure the ordering code matches the required 2.9V output voltage designation. Cross-reference the datasheet revision date to confirm electrical characteristics remain unchanged.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this part when inrush current suppression is not required, as indicated by the D-type designation. Verify that the 2.9V output aligns with system requirements. Ensure the SOT-25 package fits the PCB layout constraints. Confirm compatibility with ceramic capacitors for phase compensation. Check if the 300mA current rating suffices for peak load demands without exceeding thermal limits.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the XD6239 series of high-speed LDO regulators designed for automotive environments. The series offers various output voltages and packages. The D-type variant specifically excludes inrush current protection found in H-types. All variants share core features like high accuracy and low dropout voltage. The series is qualified to AEC-Q100 Grade 1 standards for reliability.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

XD6239H291PR-Q: Includes inrush current protection and uses SOT-89-5 package. XD6239D291PR-Q: Same electrical specs but different SOT-89-5 package. XD6239D2916R-Q: Same electrical specs but different DFN1010-4C package. Verify pinout and thermal performance differences before substitution.