XC6503C47AMR-G

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

The XC6503C47AMR-G is a fixed-output low-dropout (LDO) voltage regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 4.7V with a maximum continuous output current of 500mA. The device operates within an input voltage range up to 6V and maintains a typical dropout voltage of 155mV at full load. Quiescent current is specified at 15µA, ensuring efficient power management. The unit features a Power Supply Rejection Ratio (PSRR) of 55dB at 1kHz and includes built-in overcurrent protection and thermal shutdown circuits for system reliability.

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

• Capless design eliminates the need for external output capacitors, reducing component count and board space.
• Integrated high-speed response circuitry ensures stable regulation under dynamic load conditions.
• Built-in protective functions include overcurrent limiting and thermal shutdown to safeguard against fault conditions.

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

• Portable battery-powered electronic devices requiring efficient linear regulation
• Embedded systems utilizing CMOS or bipolar logic families
• Communication equipment needing stable voltage rails with low noise

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

Verify the specific suffix MR-G confirms the SOT-25-5 package and reel packaging format. Confirm the C series designation aligns with the required 4.7V fixed output tolerance. Ensure compatibility with RoHS directives if applicable to your manufacturing standards. Cross-reference the datasheet revision date to confirm pinout consistency with existing designs.

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

Select this component when a fixed 4.7V rail is required with moderate current demands up to 500mA. The capless architecture simplifies layout compared to traditional LDOs requiring stabilization capacitors. Consider the 155mV dropout voltage relative to your minimum input supply headroom. The 15µA quiescent current makes it suitable for applications where standby power consumption must be minimized without sacrificing transient response speed.

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

This part belongs to the XC6503 series of high-speed LDO regulators from Torex Semiconductor. The series is characterized by its ability to operate stably without external output capacitors, distinguishing it from many conventional linear regulators that require specific ESR values for stability. The XC6503 series covers various fixed output voltages, catering to diverse digital and analog circuit requirements in compact form factors.

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

Direct replacements within the same family include XC6503C47AMR-G variants with different packaging suffixes such as GR-G for tape-and-reel options. Verify that substitute parts maintain the identical 4.7V output and 500mA current rating. Ensure any alternative LDO supports capless operation if PCB space optimization is critical.