XC6705B541MR-G

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

The XC6705B541MR-G is a high-speed LDO regulator IC from Torex Semiconductor, featuring a fixed 5.4V output and 200mA maximum current capability. It operates within a 3.5V to 20.0V input range with a typical quiescent current of 1.2μA. The device includes soft-start functionality and CE control but lacks the CL discharge feature found in A-type variants. It utilizes an SOT-25 package and supports ceramic capacitors for stable operation across -40℃ to +105℃.

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

• Integrated P-channel driver FET with error amplifier and reference voltage supply
• Built-in soft-start function to suppress inrush current during startup
• Current limit and thermal shutdown protection circuits included
• CE pin enables standby mode with ultra-low stand-by current consumption

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

• Smart meters and gas detectors
• Sensor and IoT devices
• Industrial automation equipment
• Energy harvesting systems

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

Verify the specific B-type designation confirms the absence of the CL discharge function compared to A-type counterparts. Ensure the SOT-25 package matches the target PCB footprint. Confirm RoHS compliance status via official documentation before finalizing procurement specifications.

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

Select this model when a fixed 5.4V output is required without automatic load capacitor discharge. The B-type variant is suitable for applications where residual charge on the output capacitor does not require rapid dissipation during standby. Verify that the input voltage range accommodates the system's maximum supply levels.

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

This component belongs to the XC6705 series of high-speed low dropout regulators. The series offers various fixed output voltages ranging from 2.5V to 5.5V in 0.1V increments. The B-type designation specifically indicates the inclusion of CE control and soft-start, while excluding the internal CL discharge circuit present in A-type versions.

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

Does the XC6705B541MR-G include a built-in CL discharge function?

No, the B-type variant does not include the CL discharge function. This feature is exclusive to the A-type models within the XC6705 series.

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

The CE pin serves as an ON/OFF control input. Applying a high voltage activates the regulator, while a low voltage places the device into a standby mode with minimal current consumption.