XC6501B4420R-G

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

The XC6501B4420R-G is a high-speed, low-noise CMOS LDO regulator manufactured by Torex Semiconductor. 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 SSOT-24 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 load capacitor.
• Integrated CE pin allows entry into standby mode with ultra-low power consumption.
• Built-in CL auto-discharge switch rapidly pulls the output voltage to ground upon shutdown.
• Fold-back current limit circuit provides short-circuit protection and output current limiting.

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 against the manufacturer's official datasheet to confirm package type and compliance status. Ensure the design accounts for the required input voltage headroom relative to the nominal output voltage. Confirm thermal dissipation requirements based on the selected PCB mounting pattern and ambient operating conditions.

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

Select this component when a fixed 4.4V rail is required from a single-cell or dual-cell battery source. The SSOT-24 package offers a compact footprint suitable for space-constrained portable designs. The inclusion of the auto-discharge feature makes it appropriate for applications requiring rapid power-down states.

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

This device belongs to the XC6501 series of 200mA High Speed LDO Regulators. The 'B' designation indicates a CE High Active configuration with CL discharge capability. The '44' code specifies the 4.4V output voltage setting, while '20' denotes the 0.1V increment voltage type. The 'R-G' suffix identifies the SSOT-24 package with Halogen-free and RoHS-compliant construction.

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

Direct substitutes include other XC6501 variants with identical electrical characteristics but different packages, such as XC6501B441MR-G (SOT-25) or XC6501B441GR-G (USP-4). Cross-series replacements require verification of pinout compatibility and dropout voltage specifications.