XC6501B441GR-G

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

The XC6501B441GR-G is a high-speed, low-noise CMOS LDO regulator manufactured by Torex Semiconductor Ltd. It provides a fixed output voltage of 4.4V 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 to less than 0.1μA. The part utilizes the USP-4 package and incorporates CL auto-discharge functionality.

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

• Internal phase compensation enables stable regulation without requiring an external output capacitor.
• Built-in CL auto-discharge switch rapidly discharges stored charge in the output capacitor when the CE pin is set to a low level.
• 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 that the specific ordering suffix GR-G corresponds to the USP-4 package format as defined in the manufacturer's documentation. Confirm compliance requirements such as EU RoHS and halogen-free status match project specifications. Ensure the CE pin logic levels align with the system control signals before finalizing procurement.

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

Select this component when a fixed 4.4V output is required from a single-cell lithium battery or similar power source. The USP-4 package is suitable for space-constrained designs. The B-series designation indicates the inclusion of the CL auto-discharge feature, which is necessary if rapid output voltage decay is required upon shutdown.

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' designator specifically denotes a version with CE high active logic and integrated CL discharge capability, distinguishing it from other variants in the family.

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

XC6501C441GR-G

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

Does the XC6501B441GR-G require an external output capacitor?

No, the device features internal phase compensation that ensures 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 of the IC. A high signal turns the regulator on, while a low signal activates standby mode and engages the internal auto-discharge switch.