XC6223N371NR-G

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

The XC6223N371NR-G is a high-speed LDO voltage regulator from Torex Semiconductor Ltd, featuring built-in inrush current protection. It delivers a maximum output current of 300mA with an input voltage range of 1.6V to 5.5V. The nominal output voltage is 3.7V with ±1% accuracy. Dropout voltage is typically 200mV at 300mA. Supply current is 100μA, and stand-by current is 0.01μA. It includes current limit (400mA), short circuit, and thermal shutdown protection. Compatible with low ESR ceramic capacitors (CIN=1.0μF, CL=1.0μF). Operating temperature is -40℃ to 85℃. Package is SSOT-24.

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

• Built-in inrush current protection limits startup surge current.
• Active High CE function enables stand-by mode with internal output capacitor discharge.
• Integrated current limit, short circuit, and thermal shutdown protection circuits.
• Compatible with low ESR ceramic capacitors for stable phase compensation.

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

• Digital still cameras
• Smart phones / Mobile phones
• Portable game consoles
• Modules (wireless, cameras, etc.)
• IC recorders

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

Verify the part number suffix NR-G corresponds to the SSOT-24 package and 3000pcs/Reel quantity as specified in the datasheet ordering information. Confirm the designator N indicates the J/K/M/N/P/Q/R/T type series which supports an operating ambient temperature up to 105℃, distinct from older A-H types limited to 85℃. Ensure compliance with EU RoHS and Pb-free requirements indicated by the -G suffix.

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

Select this component when inrush current suppression during power-up is required for sensitive downstream loads. The SSOT-24 package suits space-constrained PCB layouts. Verify that the load current does not exceed 300mA and that the input voltage remains within the 1.6V to 5.5V range. Consider the thermal dissipation capabilities on the specific PCB layout if operating near maximum current or high ambient temperatures.

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

This device belongs to the XC6223 series of high-speed LDO regulators characterized by low noise, high ripple rejection, and low dropout voltage. The series utilizes laser trimming technology for precise output voltage selection in 0.05V increments. It integrates a P-channel MOSFET driver, error amplifier, and voltage reference into a compact footprint suitable for portable electronic applications requiring efficient power management.

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

Public confirmed substitute part numbers are not available in the provided documentation.

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

What is the function of the CE pin in the XC6223N371NR-G?

The CE pin is an Active High ON/OFF control input. When driven high, the regulator operates normally. When driven low, it enters stand-by mode, and the internal switch discharges the output capacitor CL to quickly return VOUT to the VSS level.

How does the inrush current protection work in this series?

For types including N (XC6223N...), the inrush current prevention function operates when the output voltage is below approximately 30% of the set voltage during startup. It suppresses the inrush current flowing from VIN to VOUT to not exceed 150mA typical for about 120μs before releasing to normal operation.