XC6221B3327R-G

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

The XC6221B3327R-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 3.3V with a standard accuracy tolerance. It operates within an input voltage range of 1.6V to 6.0V and delivers a maximum continuous output current of 200mA. The device utilizes the USPN-4 package and incorporates a capacitor auto-discharge circuit for rapid shutdown response. Key electrical characteristics include a typical supply current of 25μA, a standby current of 0.01μA, and a ripple rejection rate of 70dB at 1kHz.

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

• Integrates an internal auto-discharge switch that rapidly pulls the output voltage to ground upon shutdown.
• Features high-speed transient response capabilities suitable for dynamic load conditions.
• Supports stable operation using low ESR ceramic capacitors for phase compensation.

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

• Smart phones
• Portable game consoles
• Digital still cameras

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

Verify the specific suffix '7R-G' corresponds to the USPN-4 package configuration during procurement. Confirm that the 'B' designation indicates the inclusion of the CL auto-discharge function. Ensure compatibility with EU RoHS compliance standards as indicated by the '-G' suffix. Cross-reference the datasheet for the correct minimum order quantity associated with this specific reel packaging format.

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

Select this component when a compact footprint is required due to the ultra-small USPN-4 package dimensions. Choose this variant over non-auto-discharge types if fast output voltage decay is necessary after power removal. Verify that the 3.3V fixed output aligns with the target load requirements without needing external resistor networks.

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

This part belongs to the XC6221 series of CMOS regulators designed for high accuracy and low noise applications. The series distinguishes itself through laser-trimmed output voltages and integrated protection circuits. The 'B' type specifically adds the auto-discharge feature compared to the 'A' type, while maintaining identical electrical performance metrics under normal operating conditions.

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

XC6221B3327MR-G

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

How does the XC6221B3327R-G handle output discharge during shutdown?

It utilizes an internal N-channel transistor and auto-discharge resistance to rapidly pull the VOUT pin down to the VSS level when the CE pin is set to a low signal.

What is the logic state requirement for the CE pin to activate the regulator?

The CE pin must be driven to a High level (typically between 1.2V and 6.0V) to turn the IC on; a Low level (≤0.3V) turns it off.