XC6503D311GR-G

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

The XC6503D311GR-G is a 500mA high-speed CMOS LDO regulator from Torex Semiconductor. It provides a fixed 3.1V output with ±1% accuracy and operates within a 1.7V to 6.0V input range. The device features internal phase compensation for capacitor-less stability, achieving a typical dropout voltage of 190mV at 300mA. It includes built-in current limit, short-circuit protection, and thermal shutdown circuits. The part is housed in a USP-4 package and supports an operating temperature range of -40°C to +85°C.

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

• Capacitor-less operation enabled by internal phase compensation
• Integrated chip enable function for power management
• Built-in protection against overcurrent, short circuits, and overheating

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

• Smart phones and mobile phones
• Portable game consoles
• Wireless modules
• Camera modules
• Bluetooth modules

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

Verify the specific suffix GR-G corresponds to the USP-4 package configuration as defined in the official datasheet ordering information. Confirm that the D-type designation ensures the presence of both the CE pull-down resistor and CL discharge functionality required for your circuit design. Ensure compliance with RoHS standards before finalizing procurement specifications.

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

Select this component when board space optimization is critical due to its capacitor-less capability. The D-series variant is appropriate if automatic output discharge upon shutdown is necessary. Verify that the load resistance does not exceed limits during startup to prevent malfunction. Ensure the input voltage remains within the specified operational range for stable regulation.

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

This regulator belongs to the XC6503 series, designed for low power consumption and high speed performance. The series offers various output voltages and package options including SOT-25 and SOT-89-5. The D-type specifically adds a pull-down resistor to the CE pin to prevent unstable operation when the pin is left open, distinguishing it from other variants in the family.

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

XC6503C311GR-G

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

How does the XC6503D achieve stability without an output capacitor?

Stability is achieved through internal phase compensation, eliminating the need for external load capacitors while maintaining reliable operation.

What is the function of the CE pin on the XC6503D?

The CE pin allows the entire circuit to be turned off via a low-level signal. The D-type includes a pull-down resistor to ensure the IC remains off if the pin is left open.