XC6221B492NR-G

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

The XC6221B492NR-G is a fixed-output low dropout regulator manufactured by Torex Semiconductor. It provides a nominal output voltage of 4.9V with a maximum output current capability of 200mA. The device operates within an input voltage range of 1.6V to 6.0V and features a typical dropout voltage of 80mV at 100mA load. It incorporates a CE control pin for active-high enable functionality and includes internal CL auto-discharge circuitry. The unit is housed in an SSOT-24 package and supports an operating ambient temperature range from -40°C to +85°C.

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

• Integrates a CL auto-discharge function that rapidly pulls the output voltage to the VSS level when the CE pin is deactivated.
• Features high ripple rejection capabilities to suppress power supply noise effectively.
• Utilizes laser trimming technology during manufacturing to ensure precise output voltage accuracy.
• Supports stable operation using low ESR ceramic capacitors for phase compensation.

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 designation matches the required footprint, as the NR suffix indicates the SSOT-24 variant. Confirm the B-series designation aligns with the need for the internal auto-discharge feature on the output capacitor. Ensure the CE pin logic requirements match the system's active-high control scheme before finalizing component selection.

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

Select this component when a fixed 4.9V rail is required with minimal quiescent current consumption. The inclusion of the auto-discharge switch makes it suitable for applications requiring rapid power-down states. Verify that the external ceramic capacitor value meets the minimum stability requirements specified for the 4.9V output setting.

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. The B-type designation specifically denotes the absence of a CE pull-down resistor combined with the presence of the output capacitor discharge mechanism.

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

XC6221B492MR-G

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

How does the XC6221B492NR-G handle the output voltage when the CE pin is set to low?

The device utilizes an internal N-channel transistor and auto-discharge resistance to actively discharge the electric charge stored in the output capacitor, pulling the VOUT pin quickly down to the VSS level.

What type of output capacitor is recommended for this regulator?

The datasheet specifies compatibility with low ESR ceramic capacitors for phase compensation and stable operation.