XC6221C1027R-G

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

The XC6221C1027R-G is a fixed-output low dropout regulator from Torex Semiconductor, housed in an USPN-4 package. It provides a nominal output voltage of 1.0 V with a standard accuracy tolerance. The device supports a maximum output current of 200 mA and operates within an input voltage range of 1.6 V to 6.0 V. Key electrical characteristics include a typical dropout voltage of 330 mV at 100 mA load, a supply current of 25 μA, and a standby current of 0.01 μA. It features a CE pin with an internal pull-down resistor for defined shutdown states.

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

• Integrates a CE control pin with an internal pull-down resistor to ensure the output returns to the ground level when the control signal is inactive.
• Utilizes laser trimming technology during manufacturing to achieve precise factory-set output voltage increments.
• Incorporates fold-back current limiting circuitry that functions as both an output current limiter and short-circuit protection mechanism.

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 suffix against the manufacturer's official documentation to confirm the package type and reel quantity. Ensure the selected variant matches the required output voltage step and accuracy class. Confirm compliance with environmental standards such as RoHS and lead-free requirements before finalizing procurement specifications.

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

Select this component based on the required fixed output voltage and the necessity for a defined logic state during shutdown via the internal pull-down resistor. Consider the thermal dissipation capabilities relative to the USPN-4 package size and the expected ambient operating temperature range. Evaluate the need for ceramic output capacitors compatible with the phase compensation requirements.

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

This part belongs to the XC6221 series of high-speed, low-noise CMOS LDO regulators designed for portable electronics. The series offers various output voltages and packages, including USP-4, SOT-25, SSOT-24, and USPN-4. The 'C' designation indicates the presence of a CE pin pull-down resistor without auto-discharge functionality.

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

XC6221C101MR-G

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

How does the XC6221C series handle the CE pin when left open?

The XC6221C series includes an internal pull-down resistor connected to the CE pin. Consequently, if the pin is left open, the IC interprets the state as a low signal, turning the regulator off and pulling the output voltage to the VSS level.

What is the function of the CL auto-discharge feature in this specific model?

The XC6221C1027R-G does not possess a CL auto-discharge feature. This function is exclusive to the B and D types within the series. In the C type, the output capacitor discharges only through the internal feedback resistors R1 and R2.