XC6223T3319R-G

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

The XC6223T3319R-G is a fixed-output low-dropout regulator from Torex Semiconductor, delivering a nominal 3.3V at up to 300mA. It operates within an input voltage range of 1.6V to 5.5V and features high accuracy with ±1% tolerance for outputs at or above 2.0V. The device incorporates built-in inrush current protection, thermal shutdown, and short-circuit protection circuits. It utilizes the USPQ-4B03 package and supports operation across an ambient temperature range of -40°C to 105°C.

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

• Integrated inrush current prevention circuit limits startup surge currents.
• Internal auto-discharge switch rapidly reduces output voltage during standby mode.
• Built-in thermal shutdown and current limit circuits protect against overload conditions.
• Compatible with low ESR ceramic capacitors for stable phase compensation.

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

• Digital still cameras
• Smart phones and mobile phones
• Portable game consoles
• Wireless modules and camera modules
• Bluetooth devices

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

Verify that the specific part number matches the required output voltage and package type before ordering. Confirm compliance with RoHS standards and ensure the operating temperature range aligns with system requirements. Cross-reference datasheet electrical characteristics with application load conditions to validate performance margins.

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

Select this component when a fixed 3.3V supply is required with integrated inrush current protection. The USPQ-4B03 package suits space-constrained surface-mount designs. Ensure input voltage remains within the specified 1.6V to 5.5V range and verify that the load current does not exceed the 300mA maximum rating under all operating conditions.

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

This device belongs to the XC6223 series of high-speed LDO regulators manufactured by Torex Semiconductor. The series is characterized by low power consumption, high ripple rejection, and precise output voltage regulation. The 'T' designation indicates the inclusion of inrush current protection and CE pin pull-down functionality, while the 'H' suffix variant extends the operating temperature range to 105°C.

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

Direct substitutes within the same family include XC6223H3319R-G, which shares identical electrical specifications but may differ in temperature rating verification. Other variants like XC6223D331NR-G offer different packages such as SSOT-24. Verify pin compatibility and protection feature alignment before substitution.

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

How does the inrush current protection function operate?

The internal circuit suppresses inrush current to approximately 150mA when the output voltage is below 30% of the set value during startup, preventing excessive current flow from the input to the output pin.

What is the behavior of the output voltage when the CE pin is pulled low?

When the CE pin is driven low, the device enters standby mode. An internal auto-discharge switch activates, rapidly discharging the output capacitor and returning the VOUT pin to the VSS level.