XC6503A28AGR-G

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

The XC6503A28AGR-G is a 500mA high-speed CMOS LDO regulator from Torex Semiconductor. It provides a fixed 2.8V output with ±1% accuracy and operates within a 1.7V to 6.0V input range. The device features internal phase compensation for stable operation without an output capacitor, achieving a typical dropout voltage of 190mV at 300mA. It includes chip enable functionality, low quiescent current of 15μA, and protection circuits including current limiting and thermal shutdown.

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

• Capacitor-less stability via internal phase compensation
• Chip enable pin for power management control
• Integrated fold-back current limit and thermal shutdown

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 and reel quantity as defined in the datasheet ordering information. Confirm that the A series designation matches the required CE pin configuration and pull-down resistor absence. Ensure environmental compliance requirements align with the Halogen and Antimony-free RoHS status indicated by the -G suffix.

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

Select this component when board space optimization is critical due to the elimination of external output capacitors. The A-series variant is suitable for designs requiring chip enable control without an internal pull-down resistor on the CE pin. Verify that the load resistance does not exceed 4.8Ω for outputs below 2.4V to prevent startup issues associated with the fold-back current limit circuit.

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

This part belongs to the XC6503 series of CL capacitor-less LDO regulators. The 'A' designator indicates a specific pinout and feature set including chip enable without an internal pull-down resistor. The '28' code specifies the 2.8V nominal output voltage, while 'GR-G' denotes the USP-4 package and environmental compliance.

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

XC6503B28AGR-G: Includes internal pull-down resistor on CE pin.

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

Does the XC6503A28AGR-G require an output capacitor?

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

What is the function of the CE pin on the XC6503A series?

The CE pin allows the entire circuit to be turned off by applying a low-level signal. Unlike the B/D series, the A/C series does not have an internal pull-down resistor.