XC6503A271GR-G

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

The XC6503A271GR-G is a CL capacitor-less 500mA high-speed CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 2.7V with an accuracy of ±1% for voltages between 2.0V and 5.0V. The device operates within an input voltage range of 1.7V to 6.0V and features internal phase compensation, eliminating the need for external load capacitors. Key electrical characteristics include a typical dropout voltage of 190mV at 300mA, a supply current of 15μA, and a power supply rejection ratio (PSRR) of 55dB at 1kHz. It includes built-in protection circuits such as current limit, short-circuit protection, and thermal shutdown.

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

• Capacitor-less operation enabled by internal phase compensation circuitry
• Integrated chip enable function for low-power standby mode control
• Built-in fold-back current limiter and thermal shutdown protection

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

• Smart phones and mobile phones
• Portable game consoles
• Wireless and camera modules
• Bluetooth modules
• Digital TV tuner modules

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

Verify the specific package type USP-4 and reel quantity against official distributor listings. Confirm that the ordering suffix GR-G corresponds to the correct halogen-free and RoHS-compliant status. Ensure the CE pin logic requirements are met for the A-series variant during integration.

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

Select this component when board space optimization is critical due to the elimination of external load capacitors. The A-series variant is suitable for applications requiring a chip enable function without an internal pull-down resistor on the CE pin. Verify that the required output voltage of 2.7V falls within the standard 0.05V increment range provided by the series.

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

This part belongs to the XC6503 series of low-dropout regulators designed for portable electronic devices. The series offers various output voltages from 1.2V to 5.0V in precise increments. The XC6503A variant specifically includes a chip enable pin but lacks the internal pull-down resistor found in C and D variants, allowing for flexible logic interfacing.

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

XC6503B271GR-G: Includes internal pull-down resistor on CE pin.

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

Does the XC6503A271GR-G require an external output capacitor?

No, the device is designed to operate stably without an external load capacitor (CL) due to its internal phase compensation circuit.

What is the function of the CE pin on the XC6503A series?

The CE pin allows the user to turn the entire circuit ON or OFF. A high-level signal activates the regulator, while a low-level signal puts it into standby mode.