XC6220B441QR-G

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

The XC6220B441QR-G is a CMOS LDO voltage regulator from the Torex XC6220 series, featuring Green Operation functionality. It provides a fixed output voltage of 4.4V with an accuracy of ±1% for voltages at or above 2.0V. The device supports a maximum output current of 1A and operates within an input voltage range of 1.6V to 6.0V. It incorporates low dropout performance, high ripple rejection, and built-in protections including thermal shutdown and over-current limiting.

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

• Green Operation function automatically switches between High Speed and Power Save modes based on load current to optimize power consumption.
• Integrated CL auto-discharge circuit rapidly discharges output capacitance when the CE pin is pulled low.
• Built-in inrush current prevention circuit limits startup surge current to minimize power supply fluctuations.
• CE pin control allows for efficient standby mode operation with significantly reduced power consumption.

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

• Optical disk drives
• Magnetic disk drives
• Digital still cameras
• Camcorders
• Digital audio equipment

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

Verify the specific package type associated with the suffix 'QR' against official documentation, as standard XC6220B variants typically utilize SOT-25 (MR), SOT-89-5 (PR), or USP-6C (ER) packages. Confirm that the component meets EU RoHS compliance and is free of halogen and antimony. Ensure the design accounts for the required ceramic input and output capacitors to maintain stability.

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

Select this part for applications requiring a stable 4.4V rail with high efficiency under varying loads. The Green Operation feature makes it suitable for battery-powered devices where extending operational life is critical. Verify that the input voltage remains within the 1.6V to 6.0V range and that the thermal dissipation capabilities of the chosen package are sufficient for the expected power loss.

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

This component belongs to the XC6220 series of 1A LDO regulators known for their high speed and low noise characteristics. The 'B' designation indicates the inclusion of CL auto-discharge functionality without a CE pull-down resistor. The series utilizes laser trimming technology to achieve precise output voltage selection in 0.05V increments across a wide range.

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

XC6220B441ER-G

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

How does the Green Operation function affect the switching behavior?

The IC automatically switches between High Speed mode for heavy loads and Power Save mode for light loads. The transition occurs when the output current drops below approximately 1mA or rises above 10mA.

What is the purpose of the CL auto-discharge feature?

When the CE pin is set to a low level, an internal N-channel transistor switch discharges the output capacitor (CL) quickly, reducing the time required for the output voltage to reach the VSS level.