XC6505B241PR-G

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

The XC6505B241PR-G is a high-speed CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed 2.4V output with ±1.0% accuracy (for voltages ≥2.0V) and supports a maximum output current of 200mA. The device operates within an input voltage range of 1.7V to 10.5V and features low power consumption of 5.5μA. Key electrical characteristics include a dropout voltage of 230mV at 100mA, ripple rejection of 290dB at 1kHz, and built-in overcurrent and thermal shutdown protection. It utilizes the SOT-25 package.

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

• Integrates a Chip Enable function that activates stand-by mode and enables rapid internal discharge of output capacitor charge via an N-channel MOSFET switch.
• Incorporates fold-back current limiting and thermal shutdown circuits to protect against excessive load currents and junction overheating.
• Utilizes a P-channel MOSFET driver controlled by an error amplifier for stable regulation across varying input and load conditions.

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

• Car navigation systems
• Car audio equipment
• Digital still cameras
• Camcorders

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

Verify the specific suffix 'MR-G' corresponds to the SOT-25 package format and reel packaging configuration as defined in the official datasheet ordering information. Confirm that the 'B' series designation matches the requirement for the integrated output capacitor discharge feature. Ensure compliance with EU RoHS and lead-free standards specified for the '-G' suffix.

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

Select this component when a fixed 2.4V rail is required with high speed response and low quiescent current. The B-series variant is necessary if active output discharge upon shutdown is needed. Verify that the input voltage remains within the 1.7V to 10.5V range and that the load current does not exceed 200mA. Consider the SOT-25 package constraints for thermal dissipation and board space.

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

This part belongs to the XC6505 series of low-power, high-speed LDO regulators from Torex Semiconductor. The series is characterized by its ability to operate with small ceramic capacitors and offers various output voltage options. The XC6505B variant specifically includes the CL discharge function, distinguishing it from the A-series which lacks this feature.

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

XC6505A241PR-G: Identical electrical performance but lacks the internal output capacitor discharge circuitry found in the B-series.

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

How does the XC6505B series differ from the XC6505A series?

The XC6505B series includes an internal N-channel MOSFET that actively discharges the output capacitor when the CE pin is low, whereas the XC6505A series only discharges through internal resistors R1 and R2.

What is the purpose of the CE pin on this regulator?

The CE (Chip Enable) pin controls the ON/OFF state of the regulator. A high-level signal activates the regulator, while a low-level signal puts it into stand-by mode, reducing supply current to approximately 0.01μA.