XC6220B281MR-G

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

The XC6220B281MR-G is a fixed-output CMOS LDO regulator from Torex Semiconductor, providing a nominal output voltage of 2.8V with a maximum continuous output current of 1A. It operates within an input voltage range of 1.6V to 6.0V and features Green Operation technology for automatic switching between high-speed and power-save modes. The device includes built-in overcurrent protection, thermal shutdown, and inrush current prevention circuits.

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 efficiency.
• Integrated CL auto-discharge circuit rapidly pulls the output voltage to ground level when the CE pin is deactivated.
• Built-in phase compensation allows stable operation using low ESR ceramic capacitors without external components.
• Incorporates overcurrent protection, thermal shutdown, and inrush current limiting to safeguard against system faults.

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

• CD-ROM, CD-R/RW drives
• DVD drives
• HDD drives
• MIDs and UMPCs
• Portable AV equipment

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

Verify that the specific part number matches the required output voltage and package type. Confirm RoHS compliance status if environmental regulations apply. Ensure the ordering suffix corresponds to the desired tape and reel orientation. Check datasheet specifications for recommended input and output capacitor values to guarantee stability.

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

Select this component for applications requiring a fixed 2.8V supply with up to 1A load capability. The SOT-25-5 package is suitable for space-constrained surface-mount designs. Consider the Green Operation feature for battery-powered devices where low quiescent current in light-load conditions is critical for extending operational life.

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

This device belongs to the XC6220 series of 1A LDO regulators featuring Green Operation. The 'B' designation indicates standard configuration with CL auto-discharge but without an internal CE pull-down resistor. The 'MR' suffix specifies the SOT-25-5 package format, which is widely used in compact consumer electronics and portable computing hardware.

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

XC6220B281PR-G (SOT-89-5 package)

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

How does the Green Operation function affect performance?

It automatically switches between high-speed mode for heavy loads and power-save mode for light loads, significantly reducing supply current during idle or low-demand periods.

What happens to the output voltage when the CE pin is set to low?

For the XC6220B series, the internal CL auto-discharge circuit activates, pulling the output voltage down to the VSS level to ensure rapid discharge of the output capacitor.