XC6222D121PR-G

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

The XC6222D121PR-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 1.2V with a maximum continuous output current of 700mA. It operates within an input voltage range of 1.7V to 6.0V and features a typical dropout voltage of 420mV at 300mA load. The device consumes 100μA of supply current and offers 65dB of ripple rejection at 1kHz. It includes chip enable functionality with internal auto-discharge for the output capacitor, reverse current protection, over-current limiting, and thermal shutdown. The component is housed in a SOT-89-5 package and supports an operating ambient temperature range of -40°C to 85°C.

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

• Integrated P-channel driver transistor enables high-speed response and low noise regulation.
• Built-in CE pin allows standby mode activation with automatic output capacitor discharge.
• Comprehensive protection mechanisms include over-current limiting, thermal shutdown, and reverse current suppression.
• Designed for stable operation using standard ceramic capacitors without requiring specific ESR characteristics.

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

• USB / HDMI products
• Optical disk drives
• Magnetic disk drives
• Smart phones / Mobile phones
• Portable game consoles

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

Verify that the ordering suffix PR-G corresponds to the SOT-89-5 package configuration. Confirm the D designator indicates the presence of a Chip Enable (CE) pin with pull-down resistor and CL discharge capability. Ensure the 121 code matches the required 1.2V output voltage specification. Check RoHS compliance status as indicated by the -G suffix.

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

Select this part when a fixed 1.2V rail is required with up to 700mA capacity. The SOT-89-5 package provides higher power dissipation capabilities compared to smaller footprints. Verify that the application requires the specific CE control logic associated with the 'D' type designation. Ensure input voltage remains above the minimum operating threshold of 1.7V under all conditions.

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

This component belongs to the XC6222 series of high-speed LDO regulators manufactured by Torex Semiconductor. The series is characterized by high accuracy, low noise, and low power consumption. Other variants in the family offer different output voltages ranging from 0.8V to 5.0V and utilize packages such as USP-6C and SOT-25. The series is designed for portable electronic applications requiring efficient power management.

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

XC6222D121MR-G

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

How does the XC6222D121PR-G handle reverse current?

The device incorporates reverse current protection that suppresses current flow from the VOUT pin to the VIN pin to approximately 1.5μA maximum when VIN is lower than VOUT.

What is the function of the CE pin on this specific model?

The CE pin allows the entire circuit to be placed in a stand-by state. On the D-type variant, it also activates an internal auto-discharge switch to quickly pull the VOUT pin to the VSS level.

What are the recommended output capacitor values?

For the 1.2V output version, a ceramic capacitor of 6.8μF or higher is required for phase compensation and stable operation.