XC6705A251GR-G

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

The XC6705A251GR-G is a fixed-output low-dropout (LDO) voltage regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 2.5 V with a maximum continuous output current of 200 mA. The device supports an input voltage range from 3.5 V to 20 V and operates within a junction temperature range of -40°C to +105°C. Key electrical specifications include a typical supply current of 1.2 µA, a typical power supply rejection ratio (PSRR) of 50 dB, and a line regulation of 0.02 %/V. The package type is USP-4-5.

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

• Integrates built-in capacitor-less discharge circuitry for rapid output voltage decay when the enable signal is deactivated.
• Features high-speed transient response characteristics suitable for dynamic load applications.
• Maintains stability without requiring external output capacitors, simplifying board layout and reducing component count.

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

• Portable electronic devices requiring ultra-low quiescent current operation
• Battery-powered systems needing efficient power management
• Embedded circuits utilizing single-cell lithium-ion or lithium-polymer batteries

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

Verify the specific suffix and marking code against the official Torex Semiconductor datasheet to confirm the 2.5 V output variant. Ensure the ordering information matches the USP-4-5 package configuration. Cross-reference the manufacturer part number directly with authorized distributors to validate authenticity and current availability status before procurement.

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

Select this component when a stable 2.5 V rail is required from inputs up to 20 V with minimal static power consumption. The absence of output capacitance requirements makes it ideal for space-constrained designs. Verify that the input voltage remains above the minimum threshold of 3.5 V to ensure proper regulation and dropout performance under all operating conditions.

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

This part belongs to the XC6705 series of high-speed LDO regulators designed for low-power applications. The 'A' designation typically indicates the inclusion of internal capacitor discharge functionality, distinguishing it from variants lacking this feature. The series is optimized for battery-operated equipment where extending operational life through reduced standby current is critical.

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

Direct replacements within the same family include XC6705B251GR-G, which shares similar electrical parameters but may lack the internal CL discharge feature. Other XC6705 variants with different output voltages are not electrically compatible substitutes. Always verify pinout compatibility and thermal performance when substituting across series variations.