XC6209F422MR-G

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

The XC6209F422MR-G is a positive voltage Low Dropout (LDO) regulator manufactured by Torex Semiconductor using CMOS technology. It provides a fixed output voltage of 4.2 V with a maximum output current of 300 mA. The device operates within an input voltage range of 2 V to 10 V and features a typical dropout voltage of 180 mV at full load. Key electrical specifications include a quiescent current of 25 µA, a ripple rejection ratio of 70 dB at 10 kHz, and a line regulation of 0.01 %/V. The unit is housed in a SOT-25-5 surface-mount package and supports an operating temperature range from -40°C to +85°C.

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

• Integrated foldback current limiter provides short-circuit protection for the output pin and internal circuitry.
• Compatible with low ESR ceramic capacitors to ensure output stability and excellent transient response under varying load conditions.
• Includes Control Enable (CE) functionality to actively shut down the regulator, significantly reducing power consumption during standby modes.

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

• Portable audio and video equipment requiring stable power rails
• Battery-powered consumer electronics and handheld devices
• Wireless communication modules and cordless phones
• Reference voltage sources in precision measurement circuits

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

Verify the specific suffix 'MR' confirms the SOT-25-5 package configuration required for your PCB layout. Ensure the fixed 4.2 V output aligns with your system's voltage requirements, as adjustable variants exist within the XC6209 family. Confirm RoHS compliance status through official manufacturer documentation prior to final procurement decisions.

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

Select this component when a fixed 4.2 V rail is needed with high efficiency and low noise. The 300 mA output capability suits moderate load applications, while the 25 µA quiescent current optimizes battery life. Verify that the input voltage remains above the minimum dropout threshold to maintain regulation under all expected load conditions.

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

This part belongs to the XC6209 series of high-speed LDO regulators designed for portable applications. The series utilizes CMOS processes to achieve low power consumption and high precision. The XC6209F422MR-G specifically offers a fixed 4.2 V output, distinguishing it from other variants that provide different voltage levels or adjustable outputs within the same robust package architecture.

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

Cross-reference with other XC6209 series parts if different output voltages are acceptable. Verify pinout compatibility with SOT-25-5 packages before substituting with generic LDOs. Check thermal dissipation limits, as the SOT-25-5 package has lower power handling than larger footprints like SOT-89-5.