XC6901D861MR-G

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

The XC6901D861MR-G is a negative voltage CMOS regulator from Torex Semiconductor, designed for applications requiring stable negative power rails. It provides a fixed output of -8.6V with a maximum continuous output current of 200mA. The device operates within an input voltage range of -2.4V to -12.4V and features a low dropout voltage of 59mV at 20mA. It includes an ON/OFF control function via the CE pin, which activates a high-speed auto-discharge switch to rapidly pull the output to ground during standby. The component supports ceramic capacitors and incorporates built-in protection against overcurrent and thermal overload.

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

• Integrates an ON/OFF control circuit that enables stand-by mode and activates an internal auto-discharge switch to quickly return the output voltage to the ground level when deactivated.
• Features fold-back current limiting and thermal shutdown circuits to protect the device from excessive load currents and overheating conditions.
• Capable of driving low ESR ceramic capacitors due to built-in phase compensation, ensuring stability without requiring specific capacitor types.

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 package type SOT-25 and the -8.6V output designation when sourcing replacements. Confirm compliance with EU RoHS standards and ensure the lead-free status matches project requirements. Check datasheet specifications for operating temperature limits and recommended external capacitor values to guarantee stable operation in the target application environment.

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

Select this component for designs requiring a precise -8.6V negative rail with moderate current demands up to 200mA. The SOT-25 package offers a compact footprint suitable for space-constrained PCB layouts. Ensure the input voltage remains within the specified range to maintain regulation and consider the thermal dissipation characteristics if operating near maximum current loads.

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

This part belongs to the XC6901 Series of 200mA negative voltage regulators manufactured by Torex Semiconductor. The series is characterized by its CMOS technology, low power consumption, and integrated protection features. It is engineered to provide reliable performance in portable electronic devices where efficient power management and small form factors are critical design constraints.

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

XC6901D861ER-G (USP-6C Package)

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

How does the XC6901D861MR-G handle the output voltage when the CE pin is set to a low level?

When the CE pin receives a low-level signal, the regulator enters stand-by mode. An internal P-channel MOSFET and discharge resistance activate to rapidly discharge the charge stored on the output capacitor, causing the -VOUT pin to quickly return to the VSS (ground) level.

What protection mechanisms are included in the XC6901D861MR-G?

The device includes a fold-back current limit circuit that reduces output current when it exceeds safe levels, and a thermal shutdown circuit that forcibly turns off the driver transistor if the junction temperature reaches 150°C. The regulator automatically restarts when the temperature drops to 125°C.