XC6701B872MR-G

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

The XC6701B872MR-G is a positive fixed-output linear voltage regulator manufactured by Torex Semiconductor Ltd. It provides an output voltage of 8.7V with a maximum output current exceeding 150mA. The device operates within an input voltage range of 2.0V to 28.0V and features a typical supply current of 50μA at 5.0V output, reducing to 0.01μA in stand-by mode via the CE pin. It incorporates internal phase compensation for ceramic capacitor compatibility, along with built-in over-current protection and thermal shutdown circuits.

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

• Integrated Chip Enable (CE) function allows switching between active operation and ultra-low power stand-by mode.
• Built-in current limiter and thermal shutdown circuit protect against overload conditions and excessive junction temperatures.
• Internal phase compensation enables stable operation using low ESR ceramic capacitors without external components.

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

• Car audio systems
• Car navigation systems
• Mobile devices and terminals

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

Verify the specific package type SOT-25 and the presence of the CE control pin when sourcing this component. Confirm that the ordering suffix MR-G indicates compliance with RoHS standards and absence of halogens or antimony. Ensure the selected variant matches the required operating temperature range of -40°C to 85°C for the B series designation.

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

Select this regulator when a fixed 8.7V output is required from a high-voltage rail up to 28V. The SOT-25 package suits space-constrained surface-mount designs. Consider the CE pin requirement for power management strategies involving stand-by modes. Verify that the application load does not exceed the 150mA limit under worst-case dropout voltage conditions.

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

This component belongs to the XC6701 series of high-speed voltage regulators designed for CMOS processes. The series offers various fixed output voltages selectable in 0.1V increments. The B series specifically supports an ambient temperature range of -40°C to 85°C. Other packages in the family include SOT-89-5, USP-6C, SOT-223, and TO-252.

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

XC6701B872PR-G

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

What happens if the CE pin is left open?

Leaving the CE pin open causes unstable operation. It must be connected to either VIN or VSS to ensure defined logic states.

Is an output capacitor required for stability?

Internal phase compensation allows the IC to operate stably even without an output capacitor, though one is recommended for transient response.