XC6223N341NR-G

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

The XC6223N341NR-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 fixed output voltage is 3.4V with ±1% accuracy. Dropout voltage is typically 200mV at 300mA. Supply current is 100μA, and stand-by current is 0.01μA. PSRR is 80dB at 1kHz. Protection circuits include current limit (400mA), short circuit, over-heat, and inrush current prevention. It operates within -40℃ to 105℃ ambient temperature and uses SSOT-24 packaging.

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

• Built-in inrush current protection circuit limits startup surge current.
• Internal auto-discharge switch rapidly drains output capacitor charge during shutdown.
• Integrated thermal shutdown and fold-back current limiting protect against overload.
• 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
• Wireless modules
• Bluetooth devices

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

Verify the specific suffix NR-G corresponds to the SSOT-24 package type as defined in the official datasheet ordering information. Confirm that the '1' designator indicates the 3.4V output voltage with ±1% accuracy. Ensure the component meets EU RoHS compliance requirements by checking for the Halogen and Antimony-free designation associated with the '-G' suffix. Cross-reference the full part number against the manufacturer's latest product classification list to validate availability and specifications.

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

Select this regulator when a fixed 3.4V supply is required with high accuracy and fast transient response. The inclusion of inrush current protection makes it suitable for systems sensitive to power-up surges. The active-high CE function allows for efficient power management through external control signals. Verify that the application environment stays within the specified operating temperature range of -40℃ to 105℃ for the extended temperature variant.

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

This component belongs to the XC6223 series of high-speed LDO regulators characterized by low noise and high ripple rejection. The series offers various output voltages selectable in 0.05V increments. Different suffixes denote variations in protection features, such as inrush current prevention and CE pin pull-down resistors. The N341 designation specifically identifies the electrical characteristics and package configuration within this broader family.

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

Consult the official datasheet for alternative types within the XC6223 series that may offer different packages or slight variations in protection features. Direct substitutes must match the 3.4V output, 300mA current capability, and SSOT-24 footprint. Verify compatibility of pin functions, particularly the CE control logic and discharge capabilities, before implementation.

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

How does the inrush current protection function operate?

When the output voltage is below approximately 30% of the set voltage during startup, the circuit suppresses the inrush current to a typical value of 150mA for about 120μs to prevent excessive surge currents.

What happens to the output voltage when the CE pin is pulled low?

In standby mode, the internal auto-discharge switch activates, rapidly discharging the electric charge from the output capacitor CL so that the VOUT pin quickly returns to the VSS ground level.

Is the CE pin internally pulled down?

No, the XC6223N341NR-G (Type N) does not have an internal CE pull-down resistor. The CE pin must be driven high to enable operation; leaving it open results in an undefined state.