XC6503A32AMR-G

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

The XC6503A32AMR-G is a CL capacitor-less 500mA high-speed CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 3.2V with ±1% accuracy (for VOUT ≥ 2.0V). The device operates within an input voltage range of 1.7V to 6.0V and features internal phase compensation, eliminating the need for external load capacitors. Key electrical parameters include a typical dropout voltage of 190mV at 300mA, a supply current of 15μA, and standby current of 0.01μA. It includes chip enable functionality, fold-back current limiting, short-circuit protection, and thermal shutdown.

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

• Capacitor-less operation enabled by internal phase compensation
• Chip enable function allows circuit shutdown via low-level input signal
• Integrated protection circuits including current limit, short-circuit, and thermal shutdown

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

• Smart phones / Mobile phones
• Portable game consoles
• Modules (wireless, camera, etc.)
• Bluetooth modules
• Digital TV tuner modules

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

Verify the specific ordering suffix MR-G corresponds to the SOT-25 package configuration as defined in the official datasheet. Confirm that the -G suffix indicates compliance with EU RoHS standards and absence of halogen and antimony. Ensure the component type A designation matches the required pinout characteristics regarding the CE pin pull-down resistor status.

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

Select this component when board space optimization is critical due to its capacitor-less design capability. Choose the XC6503A variant specifically if the application requires a chip enable pin without an internal pull-down resistor, distinguishing it from the C/D series which includes one. Verify that the 3.2V output aligns with system requirements and that the 500mA current rating suffices for peak loads.

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

This part belongs to the XC6503 series of low-dropout regulators designed for portable electronic applications. The series offers various output voltages in precise increments and multiple package options including USP-4, SOT-25, and SOT-89 variants. The XC6503A subtype is characterized by having no internal pull-down resistor on the Chip Enable pin, offering flexibility in control logic interfacing compared to other series members.

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

XC6503B32AMR-G: Features internal pull-down resistor on CE pin and CL discharge capability.

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

Does the XC6503A32AMR-G require an output capacitor for stability?

No, the device utilizes internal phase compensation, allowing it to operate stably without an external load capacitor.

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

The CE pin enables or disables the entire circuit; a low-level signal turns the IC off, while a high-level signal keeps it on.