XC6503C421MR-G

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

The XC6503C421MR-G is a positive fixed linear voltage regulator manufactured by Torex Semiconductor Ltd. It provides a stable 4.2 V output with a maximum load current of 500 mA. The device operates within an input voltage range up to 6 V and features a low quiescent current of 12 uA. It is housed in a compact SOT-25-5 surface-mount package. The component supports an operating temperature range from -40°C to +85°C, ensuring reliable performance in various electronic applications.

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

• Provides a fixed 4.2 V output voltage for stable power supply requirements
• Supports high-speed operation with a maximum output current of 500 mA
• Features ultra-low standby current consumption for energy efficiency
• Includes built-in protection circuits for enhanced system reliability

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

• Portable battery-powered devices requiring efficient voltage regulation
• Consumer electronics utilizing lithium-ion or lithium polymer batteries
• Embedded systems needing stable 4.2 V logic supplies
• Wearable technology with strict power budget constraints

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

Verify the exact suffix 'C' against official Torex documentation to confirm pinout and functional specifications, as variations exist within the XC6503 series. Ensure the SOT-25-5 package matches your PCB footprint design. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if required for your specific manufacturing standards.

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

Select this component when a fixed 4.2 V output is required for lithium-based battery charging or regulation. The 500 mA current capability suits moderate load applications. Consider the 12 uA quiescent current for battery life optimization. Verify that the 6 V maximum input voltage aligns with your source supply. The SOT-25-5 package is suitable for space-constrained designs.

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

This part belongs to the Torex XC6503 series of low-dropout regulators. The series is designed for portable equipment and battery-operated devices. The XC6503C variant specifically denotes the 4.2 V fixed output version. It is categorized under PMIC voltage regulators. The series emphasizes low power consumption and small package size for modern mobile electronics.

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

Direct substitutes include XC6503B421MR-G and XC6503D421MR-G, provided pin compatibility and thermal characteristics are verified. Check datasheets for identical output voltage and current ratings before substitution.