XC6901D371MR-G

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

The XC6901D371MR-G is a negative voltage CMOS regulator from Torex Semiconductor, providing a fixed output of -3.7V with a maximum current of 200mA. It operates within an input voltage range of -2.4V to -12.4V and features a low supply current of 100µA. The device includes ON/OFF control via the CE pin, built-in thermal shutdown, and foldback current limiting. It utilizes a SOT-25-5 package and supports ceramic capacitors for stable phase compensation.

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

• Integrates ON/OFF control functionality allowing stand-by mode activation via the CE pin signal.
• Includes internal auto-discharge circuitry to rapidly reduce output voltage when deactivated.
• Features foldback current limiting and thermal shutdown protection against overheating.
• Compatible with low ESR ceramic capacitors due to built-in phase compensation.

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

• Negative power supplies
• Wireless LAN modules
• Digital still cameras
• Mobile devices and terminals

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

Verify the specific suffix MR-G corresponds to the SOT-25 package and 3000-unit reel quantity. Confirm Type D designation indicates an operating temperature range up to 85°C. Ensure compatibility with required input/output voltage levels before integration.

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

Select this component for applications requiring a fixed negative rail with moderate current demands. The SOT-25 package suits space-constrained designs. Verify that the input voltage remains within the specified limits to maintain regulation and prevent thermal issues under load.

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

This part belongs to the XC6901 series of 200mA negative voltage regulators. The 'D' type specifies a maximum operating temperature of 85°C, while the 'MR-G' suffix denotes the SOT-25 package and RoHS compliance. It is designed for portable electronics requiring efficient negative voltage generation.

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

XC6901D371ER-G (USP-6C package)

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

How does the CE pin function affect the output?

Applying a high-level signal activates the regulator, while a low-level signal or open circuit triggers stand-by mode, engaging the internal auto-discharge switch to pull the output to ground level.

What protection circuits are included?

The device incorporates over-current protection with foldback characteristics and thermal shutdown, which automatically turns off the driver transistor if junction temperature exceeds safe limits.