XC6221C4327R-G

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

The XC6221C4327R-G is a fixed-output low dropout regulator from Torex Semiconductor, housed in an USPN-4 package. It provides a nominal output voltage of 4.30V with a standard accuracy of ±2%. The device supports a maximum output current of 200mA and operates within an input voltage range of 1.6V to 6.0V. Key electrical parameters include a typical dropout voltage of 80mV at 100mA load, a supply current of 25μA, and a ripple rejection rate of 70dB at 1kHz. The CE pin features an internal pull-down resistor.

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

• Integrates a high-speed CMOS regulator circuit with fold-back current limiting for short-circuit protection.
• Features an internal pull-down resistor on the CE control pin to ensure defined logic states.
• Compatible with low ESR ceramic capacitors for stable phase compensation and compact design.

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

• Smart phones
• Portable game consoles
• Digital still cameras
• Mobile devices

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

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and environmental compliance. Ensure that the required output voltage tolerance matches the standard or high-accuracy variants available in the series. Confirm thermal dissipation requirements relative to the PCB layout and ambient operating temperature limits specified in the datasheet.

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

Select this component when a fixed 4.30V rail is required with minimal quiescent current consumption. The USPN-4 package offers a small footprint suitable for space-constrained portable electronics. Verify that the application load current remains within the 200mA limit and that the input voltage stays above the minimum dropout threshold for reliable regulation.

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

This part belongs to the XC6221 series of high-accuracy, low-noise LDO regulators. The series utilizes laser trimming technology to set output voltages in precise increments. The 'C' designation indicates the presence of an internal CE pin pull-down resistor without auto-discharge functionality, distinguishing it from other series variants.

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

XC6221C43A7R-G

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

Does the XC6221C4327R-G feature an auto-discharge function?

No, the 'C' type in the XC6221 series does not include a CL auto-discharge switch. Only the B and D types provide this feature.

What is the recommended output capacitor value for this device?

For output voltages between 1.40V and 4.00V, a minimum of 1.0μF ceramic capacitor is recommended. For voltages above 4.05V, a minimum of 2.2μF is required.