XC6901D43BPR-G

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

The XC6901D43BPR-G is a negative voltage CMOS regulator from the XC6901 series, manufactured by Torex Semiconductor Ltd. It provides a fixed output voltage of -4.3V with a maximum output current of 200mA. The device operates within an input voltage range of -2.4V to -12.4V (at VCE=3.6V). It features high accuracy of ±1.5% for outputs below -2.0V and ±0.03V for outputs at or above -2.0V. The regulator includes ON/OFF control via the CE pin, built-in auto-discharge for the output capacitor, and protection circuits including current limit and thermal shutdown.

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

• Includes ON/OFF control function that enables stand-by mode via the CE pin signal.
• Features internal auto-discharge switch to quickly return the output voltage to ground level during stand-by.
• Incorporates fold-back current limiting and thermal shutdown circuits for overload protection.

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-89-5 and the suffix PR-G against the official datasheet ordering information. Confirm the Type D designation corresponds to the required maximum operating temperature of 85°C. Ensure the output voltage code matches the -4.3V requirement. Check for RoHS compliance status as indicated by the -G suffix in the manufacturer's documentation.

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

Select this component when a stable negative voltage rail is required for portable electronics. The low standby current makes it suitable for battery-operated applications requiring efficient power management. Verify that the input voltage range accommodates the system's negative supply variations. Consider the thermal performance and PCB layout requirements for the SOT-89-5 package to ensure reliable operation 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 series is designed for low noise and high speed applications. The 'D' in the model number indicates a maximum operating temperature of 85°C, while the 'E' variant supports up to 105°C. The series integrates reference voltage sources, error amplifiers, and driver transistors into a single CMOS chip.

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

XC6901E43BPR-G