XD6239H271MR-Q

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

The XD6239H271MR-Q is a high-speed LDO regulator from Torex Semiconductor, designed for automotive and industrial applications. It features an input voltage range of 2.0V to 6.0V and provides a fixed output voltage of 2.7V with ±1.0% accuracy. The device supports a maximum output current of 300mA while maintaining a typical supply current of 100μA. It includes built-in inrush current protection, current limit, and thermal shutdown circuits. Operating within an ambient temperature range of -40°C to +125°C, it utilizes SOT-25 packaging.

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

• Integrated inrush current protection function for H-type devices
• Built-in current limit and thermal shutdown protection circuits
• High ripple rejection capability at 1kHz frequency
• Low dropout voltage performance with low ESR capacitors

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

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

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

Verify the specific suffix MR-Q confirms the SOT-25 package and AEC-Q100 Grade 1 qualification. Ensure the ordering code matches the required 2.7V output designation. Confirm RoHS compliance and halogen-free status as per manufacturer specifications. Cross-reference datasheet electrical characteristics against system requirements before procurement.

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

Select this component when a stable 2.7V rail is required with high ripple rejection and fast transient response. The H-type designation ensures inrush current protection is active. Verify that the load current does not exceed 300mA and that input voltage remains within the 2.0V to 6.0V range. Consider the SOT-25 package size constraints for PCB layout.

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

This part belongs to the XD6239 series of automotive-grade LDO regulators. The series offers selectable output voltages in 0.1V increments between 1.2V and 3.4V. It is characterized by high accuracy, low noise, and high PSRR, making it suitable for sensitive analog and digital loads in harsh environments.

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

Check for XD6239D271MR-Q if inrush protection is not needed. Other packages like DFN1010-4C or SOT-89-5 are available within the same series. Ensure any substitute maintains AEC-Q100 Grade 1 certification and compatible pinout configurations.

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

What is the function of the 'H' designator in the part number?

The 'H' indicates that the device includes a built-in inrush current protection circuit, which limits the initial surge current during startup.

How does the EN pin operate on this regulator?

The EN pin controls the ON/OFF state. A high signal activates the regulator, while a low signal or open circuit places it in standby mode, enabling CL discharge.

What protection features are integrated into the XD6239H271MR-Q?

It includes current limit protection, thermal shutdown protection, and inrush current protection to safeguard against overload and overheating conditions.