XC6223T14BPR-G

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

The XC6223T14BPR-G is a high-speed low-dropout (LDO) voltage regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 1.4V with an accuracy of ±20mV for voltages below 2.0V. The device supports a maximum output current of 300mA and operates within an input voltage range of 1.6V to 5.5V. Key electrical characteristics include a typical dropout voltage of 420mV at 300mA, a supply current of 100μA, and a standby current of 0.01μA. It features built-in inrush current protection, current limiting, short-circuit protection, and thermal shutdown. The component is housed in a SOT-89-5 package and is rated for an operating ambient temperature range of -40°C to +105°C.

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

• Integrated inrush current protection circuit limits startup surge current to approximately 150mA typical.
• Built-in auto-discharge function rapidly releases stored charge from the output capacitor when the control enable pin is deactivated.
• Internal pull-down resistor on the control enable pin ensures a defined OFF state when the pin is left open.
• Compatible with low equivalent series resistance (ESR) ceramic capacitors for both input and output filtering.

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 suffix corresponds to the required package type and environmental compliance status. Confirm that the ordering suffix matches the intended design requirements regarding CE pin configuration and protection circuits. Ensure compatibility with the target PCB footprint and soldering process specifications provided in the datasheet.

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

Select this regulator for applications requiring precise low-voltage regulation with fast transient response. The inclusion of inrush current protection makes it suitable for systems sensitive to power-up surges. The internal pull-down resistor simplifies control logic design by preventing undefined states. Verify that the load current does not exceed the maximum rating and that thermal dissipation remains within safe limits for the chosen package.

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

This component belongs to the XC6223 series of LDO regulators, which are designed for high-speed performance and low power consumption. The series offers various output voltage options selectable in small increments. Different suffixes indicate variations in protection features, such as inrush current prevention and output discharge capabilities, allowing customization for specific system needs.

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

Direct substitutes within the same series include other XC6223 variants with different output voltages or package types, such as XC6223x18BPR-G or XC6223x25BPR-G. Ensure any replacement maintains the same package outline and pin configuration to fit existing footprints without redesign.

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

What is the function of the internal pull-down resistor on the CE pin?

The internal pull-down resistor ensures that the control enable (CE) pin defaults to the OFF state if left unconnected, preventing unintended operation during power-up or signal floating.

How does the inrush current protection operate?

During startup, if the output voltage is below approximately 30% of the set value, the inrush current protection circuit limits the current flowing from the input to the output pin to a typical value of 150mA, preventing excessive surge currents.

What happens to the output voltage when the CE pin is set to LOW?

When the CE pin is set to LOW, the regulator enters stand-by mode. For the 'T' type variant, an internal switch discharges the output capacitor, causing the VOUT pin to quickly return to the VSS ground level.