XC6221D422NR-G

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

The XC6221D422NR-G is a fixed-output linear regulator from Torex Semiconductor Ltd, housed in an SSOT-24 package. It provides a nominal output voltage of 4.2V with a maximum output current of 200mA. The device operates within an input voltage range of 1.6V to 6.0V and features a dropout voltage of 80mV at 100mA load. It includes an internal pull-down resistor on the CE pin and a capacitor auto-discharge function for rapid shutdown. The unit complies with EU RoHS standards.

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

• Integrates an N-channel transistor for automatic discharge of output capacitance upon shutdown
• Features an internally pulled-down control enable pin to prevent undefined states
• Provides high ripple rejection capability using low ESR ceramic capacitors
• Incorporates fold-back current limiting and short-circuit protection mechanisms

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 suffix NR-G corresponds to the SSOT-24 package configuration required for your design. Confirm that the D-type designation matches the need for an internal CE pull-down resistor and CL auto-discharge functionality. Ensure compatibility with the specified operating temperature range and verify compliance with environmental directives such as RoHS before finalizing procurement.

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

Select this component when a fixed 4.2V output is required alongside fast discharge capabilities. The D-type variant is suitable for applications where the CE pin must not be left floating. Consider the SSOT-24 package size constraints and ensure the application can accommodate the necessary input and output ceramic capacitors for stability.

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

This part belongs to the XC6221 series of high-speed, low-dropout CMOS regulators. The series offers various output voltages and accuracy levels across multiple package options including USP-4, SOT-25, and USPN-4. The XC6221D422NR-G specifically utilizes the SSOT-24 form factor and represents the standard accuracy tier within the product line.

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

XC6221A422NR-G

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

How does the XC6221D422NR-G handle output voltage during shutdown?

It utilizes an internal auto-discharge switch connected between the VOUT and VSS pins to rapidly discharge the output capacitor when the CE pin is set to a low level.

What is the state of the CE pin if it is left unconnected?

Unlike other variants in the series, the D-type includes an internal pull-down resistor, ensuring the IC remains in the OFF state if the CE pin is left open.