XC6501B18AMR-G

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

The XC6501B18AMR-G is a fixed-output CMOS LDO regulator from Torex Semiconductor, providing a nominal output voltage of 1.8V with a maximum continuous output current of 200mA. It operates within an input voltage range of 1.4V to 6.0V and achieves stable regulation without requiring an external load capacitor due to internal phase compensation. The device features a low supply current of 13μA during operation and includes a CE pin for active-high control, enabling stand-by current consumption below 0.1μA. It incorporates built-in protection circuits including current limiting and short-circuit protection.

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

• Capable of stable operation without an external output capacitor (CL) through integrated internal phase compensation.
• Features an enable (CE) pin that allows the circuit to enter a low-power stand-by mode with minimal current draw.
• Includes fold-back current limit and short-circuit protection circuits to safeguard the output against overload conditions.

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

• Smart phones
• Portable games
• Wireless modules
• Bluetooth devices
• Digital-TV tuners

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

Verify the specific package type SOT-25 and the ordering suffix MR-G correspond to the required reel quantity. Confirm the B-series designation indicates the presence of the CL auto-discharge function if rapid output discharge is necessary for the application design.

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

Select this component when a fixed 1.8V rail is required with high speed response and no external output capacitor is desired. Ensure the input voltage remains above the minimum operating threshold while accounting for dropout voltage at the expected load current. Verify compatibility with the active-high logic level on the CE pin.

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

This part belongs to the XC6501 series of high-speed, low-noise CMOS LDO regulators manufactured by Torex Semiconductor. The series is characterized by its ability to operate stably without load capacitors and its low power consumption profile suitable for battery-powered portable electronics.

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

XC6501A18AMR-G

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

Does the XC6501B18AMR-G require an external output capacitor?

No, the device provides stable output voltages even without a load capacitor because phase compensation is carried out internally.

How does the CE pin function in this regulator?

The CE pin controls the ON/OFF state; a high-level signal turns the circuit on, while a low-level signal puts it into stand-by mode.