XC6221B21AMR-G

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

The XC6221B21AMR-G is a fixed-output low dropout regulator from Torex Semiconductor, housed in an SOT-25 package. It provides a nominal output voltage of 2.1V with high accuracy and supports a maximum output current of 200mA. The device operates within an input voltage range of 1.6V to 6.0V and features a typical dropout voltage of 115mV at 100mA load. It consumes only 25μA of supply current and includes a CE pin for shutdown control along with internal CL auto-discharge functionality.

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

• Integrates an internal auto-discharge switch that rapidly pulls the output voltage to ground when the enable signal is deactivated.
• Maintains stable regulation using low ESR ceramic capacitors as phase compensation elements.
• Incorporates fold-back current limiting and short-circuit protection circuits to safeguard against overload conditions.

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 suffixes to confirm the package type and environmental compliance status. Ensure the selected variant matches the required output voltage increment and accuracy class for the target application design.

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

Select this component for designs requiring precise voltage regulation with minimal quiescent current consumption. The integrated discharge feature simplifies system power management by ensuring rapid output voltage decay during standby modes.

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

This part belongs to the XC6221 series of CMOS regulators designed for portable electronics. The series offers various output voltages selectable in small increments, utilizing laser trimming technology for factory-set precision across different package options.

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

XC6221B21AMR-G

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

How does the XC6221B21AMR-G handle output discharge upon shutdown?

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

What type of output capacitor is recommended for stability?

The datasheet specifies compatibility with low ESR ceramic capacitors, typically requiring a minimum capacitance value based on the specific output voltage setting.