XC6221D392GR-G

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

The XC6221D392GR-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 3.90V with standard accuracy. It operates within an input voltage range of 1.6V to 6.0V and delivers a maximum output current of 200mA. The device features a typical ripple rejection rate of 70dB at 1kHz and consumes only 25μA of supply current during operation. Packaged in the compact USP-4 format, it includes an internal pull-down resistor on the CE pin and supports ceramic capacitors as low as 1.0μF for phase compensation.

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

• Integrates an internal pull-down resistor on the control enable (CE) pin to prevent undefined states when left open.
• Features an auto-discharge circuit that rapidly pulls the output voltage to ground upon shutdown.
• Capable of driving loads using small-value low ESR ceramic output capacitors.

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 matches the design requirements, as the XC6221 series is available in multiple form factors including SOT-25 and USPN-4. Confirm the output voltage tolerance aligns with the target application's power budget. Ensure the selected variant includes the necessary CE pin configuration for the system's power management logic.

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

Select this component for applications requiring a stable 3.90V rail with minimal quiescent current consumption. The inclusion of the CE pin pull-down resistor simplifies interface design by ensuring a defined off-state without external components. Verify that the load current does not exceed the 200mA limit under all operating temperature conditions.

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

This part belongs to the XC6221 series of high-speed CMOS LDO regulators designed for portable electronics. The 'D' designation indicates the presence of both a CE pin pull-down resistor and a capacitor auto-discharge function. The 'GR-G' suffix specifies the USP-4 surface-mount package and compliance with environmental standards.

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

XC6221D392MR-G

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

How does the XC6221D392GR-G handle the output voltage when the CE pin is deactivated?

Due to the internal auto-discharge switch associated with the 'D' type designation, the output voltage is rapidly pulled down to the VSS level when the CE pin is set to a low state.

What is the recommended output capacitor type for this regulator?

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