XC6221B35AMR-G

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

The XC6221B35AMR-G is a fixed-output low dropout CMOS regulator manufactured by Torex Semiconductor. It provides a nominal output voltage of 3.50V with a standard accuracy of ±2% for voltages above 1.50V. The device supports a maximum output current of 200mA and operates within an input voltage range of 1.6V to 6.0V. Key electrical characteristics include a typical dropout voltage of 80mV at 100mA load, a supply current of 25μA, and a standby current of 0.01μA. It features high ripple rejection of 70dB at 1kHz and includes an internal auto-discharge function for the output capacitor when the control pin is deactivated.

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

• Integrates an internal auto-discharge switch that rapidly pulls the output voltage to ground level upon shutdown, ensuring safe power-down states.
• Delivers stable regulation using only low ESR ceramic capacitors as phase compensation components, simplifying external circuit design.
• Incorporates fold-back current limiting and short-circuit protection circuits to safeguard the device under 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 package type against the ordering suffix MR-G, which corresponds to SOT-25. Confirm that the B designation matches the requirement for CL auto-discharge functionality without an internal CE pull-down resistor. Ensure the 3.50V output voltage aligns with the target system rail requirements before finalizing procurement.

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

Select this component when a fixed 3.50V rail is required with minimal quiescent current consumption. The B-type designation is critical if rapid output discharge is necessary during standby mode. Verify that the input voltage remains within the 1.6V to 6.0V range and that the load current does not exceed 200mA to maintain specified performance parameters.

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

This part belongs to the XC6221 series of high-speed, low-noise LDO regulators from Torex Semiconductor. The series utilizes laser trimming technology to set precise output voltages in 0.05V increments. The XC6221B variant specifically distinguishes itself by including the CL auto-discharge feature while lacking an internal pull-down resistor on the CE pin, offering flexibility in control logic design.

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

XC6221B35XMR-G