XC6503C41AGR-G

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

The XC6503C41AGR-G is a fixed-output low dropout regulator from Torex Semiconductor, providing a nominal output voltage of 4.1V with a maximum load current of 500mA. It operates within an input voltage range of 1.7V to 6.0V and features internal phase compensation for stable operation without external load capacitors. The device includes a chip enable function that allows the circuit to be turned off via a low-level signal on the CE pin. It incorporates protection circuits including current limiting, short-circuit protection, and thermal shutdown.

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

• Capacitor-less stability achieved through internal phase compensation
• Integrated chip enable control for power management
• Built-in fold-back current limit and thermal shutdown protection

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

• Smart phones and mobile phones
• Portable game consoles
• Wireless modules
• Camera modules
• Digital TV tuner modules

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

Verify the specific suffix 'GR-G' indicates USP-4 packaging and RoHS compliance. Confirm the 'C' designation ensures the presence of a pull-down resistor on the CE pin to prevent unstable operation when the pin is left open. Ensure the ordering code matches the required 4.1V output specification.

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

Select this component for designs requiring a fixed 4.1V rail with high-speed transient response. The C-type variant is suitable where fail-safe startup behavior is needed due to the integrated CE pin pull-down resistor. Verify that the PCB layout accommodates the USP-4 package dimensions and thermal dissipation requirements for the target application environment.

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

This part belongs to the XC6503 series of CMOS LDO regulators designed for space-constrained portable electronics. The series offers various output voltages in 0.05V increments and multiple package options. The XC6503C specifically adds a pull-down resistor to the control pin compared to other variants in the family.

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

XC6503C41MR-G (SOT-25 package)

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

How does the XC6503C differ from the XC6503A regarding the CE pin?

The XC6503C includes an internal pull-down resistor on the CE pin, which prevents unstable operation if the pin is left open. The XC6503A lacks this feature.

Is an external load capacitor required for stability?

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