XC6220D471PR-G

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

The XC6220D471PR-G is a CMOS low dropout regulator from the Torex Semiconductor XC6220 series, housed in an SOT-89-5 package. It provides a fixed output voltage of 4.7V with a maximum continuous output current of 1A for voltages between 1.2V and 5.0V. The device operates within an input voltage range of 1.6V to 6.0V and features Green Operation functionality. Key electrical characteristics include a typical supply current of 50μA in high-speed mode and 8μA in power-save mode. It incorporates built-in overcurrent protection, thermal shutdown, and an inrush current prevention circuit.

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

• Integrates Green Operation function to automatically switch between high-speed and power-save modes based on load current levels.
• Features CL auto-discharge capability via an internal N-channel transistor when the CE pin is pulled low.
• Includes an inrush current prevention circuit that limits startup surge current to minimize power supply fluctuations.
• Built-in thermal shutdown and fold-back current limit circuits provide robust protection against overheating and short circuits.

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 suffix 'PR-G' corresponds to the SOT-89-5 package and 1000pcs/Reel ordering unit as defined in the datasheet. Confirm that the 'D' type designation ensures the presence of both the CE pull-down resistor and the CL auto-discharge feature. Ensure compatibility with ceramic capacitors for CIN and CL as recommended for stable phase compensation.

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

Select this part for applications requiring a fixed 4.7V output with up to 1A current capacity. The D-type variant is suitable where automatic output discharge upon shutdown is required. Consider the operating temperature range of -40℃ to +85℃ and ensure the input voltage remains within the 1.6V to 6.0V window. Verify PCB layout guidelines for capacitor placement to maintain stability with low ESR ceramic components.

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

This component belongs to the XC6220 series of 1A LDO voltage regulators known for high precision and low noise. The series utilizes laser trimming technology to select output voltages in 0.05V increments across a 0.8V to 5.0V range. The D-type classification specifically denotes semi-custom devices equipped with both CE pull-down resistors and CL auto-discharge functions for enhanced system control.

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

XC6220D471MR-G (SOT-25 package)

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

How does the Green Operation function affect power consumption?

The Green Operation function automatically switches the IC between high-speed mode and power-save mode based on the output current level, significantly reducing supply current during light load conditions.

What is the purpose of the CL auto-discharge feature in the D-type series?

The CL auto-discharge feature uses an internal N-channel transistor to quickly discharge the output capacitor when the CE pin is pulled low, shortening the time for the VOUT pin to reach the VSS level.