XC6501D4120R-G

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

The XC6501D4120R-G is a fixed positive LDO regulator from Torex Semiconductor, featuring a 4.1V output voltage with ±1% accuracy and a maximum output current of 200mA. It operates within an input voltage range of 1.4V to 6.0V and achieves a typical dropout voltage of 150mV at 100mA load. The device incorporates internal phase compensation for stable operation without an external output capacitor (CL Capless). It includes a CE pin with high-level activation, a pull-down resistor, and an auto-discharge function. Supply current is typically 13μA, dropping below 0.1μA in standby mode.

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

• Capacitor-less stability achieved through integrated internal phase compensation circuitry.
• Integrated 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.
• CE pin enables low-power standby mode with automatic discharge functionality.

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

• Smart phones
• Portable games
• Modules (wireless, camera)
• Bluetooth devices
• Digital-TV tuners

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

Verify that the specific part number XC6501D4120R-G matches the required 4.1V output voltage and USPN-4 package configuration. Confirm that the D-series designation aligns with the need for both a CE pull-down resistor and the CL auto-discharge feature. Ensure the ordering suffix corresponds to the correct reel quantity and RoHS compliance status as defined by the manufacturer.

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

Select this component when a fixed 4.1V rail is required with minimal external components due to the capless design. The inclusion of the auto-discharge feature makes it suitable for applications requiring rapid power-down states. Verify that the 200mA current capability meets the peak load requirements and that the 6.0V maximum input voltage accommodates the system supply variations.

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

This device belongs to the XC6501 series of high-speed CMOS LDO regulators manufactured by Torex Semiconductor. The series is characterized by its ability to operate stably without an output capacitor, utilizing internal phase compensation. The 'D' variant specifically denotes features including a CE pull-down resistor and an auto-discharge mechanism for the output capacitor.

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

Consult official documentation for verified substitutes within the XC6501 family or other Torex LDO lines. Cross-reference specifications such as output voltage tolerance, package dimensions, and functional features like auto-discharge before substitution.

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

Does the XC6501D4120R-G require an external output capacitor?

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

What is the function of the auto-discharge feature in this model?

The auto-discharge feature connects an internal resistor between the output and ground when the CE pin is low, allowing stored charge in any connected capacitance to dissipate quickly.