XC6503A20AGR-G

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

The XC6503A20AGR-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 2.0V with a maximum load current of 500mA. It operates within an input voltage range of 1.7V to 6.0V and features internal phase compensation for stable operation without external load capacitors. The device maintains an output accuracy of ±1% for voltages between 2.0V and 5.0V. Key electrical characteristics include a typical supply current of 15μA, a standby current of 0.01μA, and a power supply rejection ratio of 55dB at 1kHz. It incorporates fold-back current limiting, short-circuit protection, and thermal shutdown circuits.

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

• Capacitor-less stability achieved through integrated internal phase compensation circuitry
• Chip enable function allows complete circuit shutdown via low-level logic signal
• Integrated protection mechanisms including fold-back current limiting and thermal shutdown

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 suffix GR-G indicates USP-4 packaging in reels of 3,000 units. Confirm the 'A' designation corresponds to the absence of a CE pin pull-down resistor and CL discharge switch. Ensure the ordering code matches the required 2.0V output voltage and ±1% accuracy specification before finalizing procurement.

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

Select this component when a fixed 2.0V rail is required with high-speed transient response and minimal external component count. The A-series variant is suitable for designs where the CE pin does not require an internal pull-down or auto-discharge functionality. Verify that the application load resistance meets startup conditions to avoid fold-back current limit issues during initialization.

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

This part belongs to the XC6503 series of CMOS LDO regulators designed for space-constrained portable electronics. The series offers various package options and output accuracies. The XC6503A variant specifically lacks the internal pull-down resistor on the CE pin found in C/D types and the CL discharge switch present in B/D types, offering a distinct configuration for control logic integration.

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

XC6503B20AGR-G: Includes CL discharge switch and CE pull-down resistor. XC6503C20AGR-G: Includes CE pull-down resistor but no CL discharge switch. XC6503D20AGR-G: Includes both CE pull-down resistor and CL discharge switch. XC6503P20PR-G: Three-terminal version without CE pin.