XD6239H1816R-Q

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

The XD6239H1816R-Q is an automotive-grade high-speed LDO regulator from Torex Semiconductor. It provides a fixed 1.8V output with a maximum current of 300mA, operating within a 2.0V to 6.0V input range. The device features ±1.0% output voltage accuracy and includes built-in inrush current protection, thermal shutdown, and current limit circuits. It supports EN control functions and utilizes low ESR capacitors for stability.

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

• Built-in inrush current prevention function to suppress startup surge currents
• Integrated thermal shutdown and current limit protection circuits
• High ripple rejection capability for stable power supply performance
• Low standby current consumption with active EN control functionality

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 the specific suffix 'Q' confirms AEC-Q100 Grade 1 compliance for automotive qualification. Ensure the package designation matches the required footprint, as the H-type variant includes distinct inrush protection circuitry compared to standard versions. Confirm RoHS and halogen-free status requirements align with manufacturing standards.

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

Select this component for applications requiring precise 1.8V regulation under varying load conditions. The H-designator indicates integrated inrush current protection, suitable for systems sensitive to startup surges. Verify that the input voltage remains within the 2.0V to 6.0V range and that the load does not exceed the 300mA maximum output current rating.

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

This part belongs to the XD6239 series of high-speed LDO regulators designed specifically for automotive environments. The series offers selectable output voltages in 0.1V increments between 1.2V and 3.4V. The H-type designation specifically denotes the inclusion of inrush current protection, distinguishing it from the D-type which lacks this feature.

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

XD6239D1816R-Q

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

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

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

How does the EN pin operate when left unconnected?

The EN pin has an internal pull-down resistor; if left open, the pin voltage remains at a low level, placing the IC in standby mode.