XC6501B211MR-G

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

The XC6501B211MR-G is a high-speed, low-noise CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 2.1V with a maximum output current of 200mA. The device operates within an input voltage range of 1.4V to 6.0V and features internal phase compensation, allowing stable operation without an external load capacitor. It includes a CE pin for standby control, reducing supply current from 13μA to less than 0.1μA. The part is housed in an SOT-25 package.

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

• Internal phase compensation enables stable regulation without requiring an external output capacitor.
• Integrated auto-discharge switch rapidly pulls the output voltage to ground when the enable pin is deactivated.
• Fold-back current limit circuit provides short-circuit protection and limits output current during 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 ordering suffix MR-G corresponds to the SOT-25 package configuration required for your design. Confirm that the B-series designation matches the need for the CL auto-discharge function. Ensure the fixed 2.1V output voltage aligns with the target load requirements before finalizing procurement.

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

Select this component when a compact solution is needed without external output capacitors. The B-type variant is appropriate if automatic output discharge upon shutdown is required. Verify that the 200mA current capability meets the peak load demands of the application circuit.

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

This part belongs to the XC6501 series of 200mA high-speed LDO regulators. The series offers various output voltages and package options including USP-4, SSOT-24, and SOT-25. The XC6501B variant specifically includes the CL auto-discharge feature controlled by the CE pin status.

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

XC6501A211MR-G: Identical electrical performance but lacks the CL auto-discharge function.

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

Does the XC6501B211MR-G require an external output capacitor?

No, the device utilizes internal phase compensation to ensure stability without an external load capacitor.

What is the function of the CE pin on this regulator?

The CE pin controls the ON/OFF state; applying a low signal activates the internal auto-discharge switch to pull the output to VSS.