XC6501B4517R-G

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

The XC6501B4517R-G is a high-speed, low-noise CMOS LDO regulator from Torex Semiconductor. It provides a fixed output voltage of 4.5V 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 (CL). It includes a CE pin for standby control, reducing supply current to less than 0.1μA. The part is housed in a USPN-4 package.

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

• Internal phase compensation enables stable regulation without requiring an external output capacitor.
• Integrated CL auto-discharge function rapidly discharges stored charge when the CE pin is set to low level.
• Fold-back current limit circuit provides short-circuit protection and limits output current.

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

• Smart phones / Mobile phones
• Portable games
• Modules (wireless, camera, etc.)
• Bluetooth
• Digital-TV tuners

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

Verify the specific ordering suffix '7R-G' corresponds to the USPN-4 package and reel quantity as defined in the official datasheet. Confirm that the 'B' series designation matches the requirement for CE High Active logic with the CL discharge feature enabled. Ensure compatibility with RoHS compliance standards before finalizing procurement.

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

Select this component when a fixed 4.5V output is required with a 200mA load capacity. The USPN-4 package is suitable for space-constrained designs. The B-series variant is appropriate if automatic output discharge upon shutdown is necessary. Verify that the input voltage remains within the 1.4V to 6.0V operational range for the desired application.

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 is characterized by low power consumption and high speed response. The 'B' type specifically denotes a regulator with CE High Active logic and built-in CL discharge capability, distinguishing it from other variants in the family.

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

XC6501B451GR-G

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

Does the XC6501B4517R-G require an external output capacitor?

No, the device utilizes internal phase compensation to ensure stable operation without an external load capacitor (CL).

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

The CE pin controls the ON/OFF state. A high signal turns the regulator on, while a low signal puts it into standby mode, activating the internal auto-discharge switch to quickly lower the VOUT pin voltage.