XC6220B331QR-G

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

The XC6220B331QR-G is a fixed-output linear voltage regulator from the Torex Semiconductor XC6220 series. It provides a nominal output voltage of 3.3V with a maximum continuous output current capability of 1A. The device operates within an input voltage range of 1.6V to 6.0V and features a low dropout voltage characteristic, reaching approximately 65mV at 300mA load. It incorporates Green Operation technology for automatic switching between high-speed and power-save modes based on load conditions.

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

• Integrates Green Operation function for automatic mode switching between high-speed and power-save states to optimize efficiency across varying load currents.
• Includes built-in overcurrent protection and thermal shutdown circuits to safeguard against excessive load or elevated junction temperatures.
• Features an inrush current prevention circuit that limits startup surge current to minimize power supply fluctuations during system initialization.
• Supports CE pin control for active high operation and includes CL auto-discharge functionality to rapidly reduce output voltage upon shutdown.

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

• Optical disk drives
• Magnetic disk drives
• Digital still cameras and camcorders
• Digital audio equipment

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

Verify the specific package type associated with the suffix 'QR' as standard datasheets list MR (SOT-25), PR (SOT-89-5), and ER (USP-6C). Confirm RoHS compliance status and ensure the selected component matches the required output voltage tolerance and operating temperature range specifications.

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

Select this regulator when a stable 3.3V rail is required for loads up to 1A. Ensure the input voltage remains above the minimum dropout threshold plus the output voltage. Verify that the application environment stays within the -40°C to +85°C operating temperature range and that ceramic capacitors are used for stability.

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

This component belongs to the XC6220 series of 1A LDO voltage regulators manufactured by Torex Semiconductor Ltd. The series utilizes CMOS technology and laser trimming for precise output voltage selection in 0.05V increments. It is designed for battery-powered applications requiring extended life through efficient power management.

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

Consult official Torex documentation for direct pin-compatible substitutes within the XC6220 family. Verify that any replacement part maintains the same output voltage, current rating, and package dimensions before integration into existing designs.

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

How does the Green Operation function affect performance?

The Green Operation function automatically switches the IC between High Speed (HS) mode and Power Save (PS) mode based on the output current level, reducing supply current during light loads while maintaining fast response during heavy loads.

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

The CL auto-discharge feature allows the XC6220B/D series to quickly discharge the electric charge stored in the output capacitor when the CE pin is pulled low, shortening the time required for the output voltage to reach the VSS level.