XC6222D171ER-G

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

The XC6222D171ER-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 1.7V 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 supply current of 100μA. The device incorporates Chip Enable functionality with an internal pull-down resistor and includes an auto-discharge circuit for the output capacitor. It is housed in a USP-6C 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 Chip Enable function with active-high logic and internal pull-down resistor
• Built-in auto-discharge switch rapidly pulls the output voltage to ground level upon shutdown
• Includes over-current protection and thermal shutdown circuits for enhanced reliability
• Designed for stable operation using standard ceramic capacitors

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 specific part number matches the required output voltage and package type. Confirm the CE pin configuration aligns with system standby requirements. Ensure compliance with environmental standards such as RoHS. Check datasheet specifications for load regulation and dropout voltage under actual operating conditions before finalizing procurement.

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

Select this component when a fixed 1.7V rail is needed with high-speed transient response. The D-type designation indicates the presence of the Chip Enable pin with an auto-discharge feature. Verify that the application utilizes ceramic output capacitors meeting the minimum capacitance requirements specified in the datasheet for phase compensation stability.

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

This device belongs to the XC6222 series of high-speed LDO regulators manufactured by Torex Semiconductor. The series offers various fixed output voltages ranging from 0.8V to 5.0V in precise increments. Different suffixes denote variations in CE pin functionality and operating temperature ranges, allowing designers to choose the appropriate variant for specific power management needs.

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

XC6222D171MR-G (SOT-25 package)

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

How does the auto-discharge feature affect the output voltage during shutdown?

When the CE pin is driven low, the internal auto-discharge switch activates, rapidly discharging the electric charge stored in the output capacitor and pulling the VOUT pin down to the VSS level.

What type of capacitors are recommended for this regulator?

The datasheet specifies the use of ceramic capacitors for both input and output filtering to ensure stability and proper phase compensation.