XC6503B12AMR-G

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

The XC6503B12AMR-G is a CL capacitor-less 500mA high-speed CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 1.2V with ±20mV accuracy for the 1.2V to 1.95V range. 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 characteristics include a typical dropout voltage of 555mV at 300mA, a supply current of 15μA, and standby current of 0.01μA. It incorporates 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
• Integrated chip enable function for power management
• Built-in CL discharge circuit for rapid output voltage reduction
• Comprehensive protection including 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 'MR-G' corresponds to the SOT-25 package and reel packaging configuration. Confirm that the 'B' type designation includes the CE pull-down resistor feature as documented in the selection guide. Ensure compliance requirements match the Halogen and Antimony-free 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 its capacitor-less design. The B-type variant is suitable for applications requiring both chip enable functionality and automatic output capacitor discharge. Verify that the required output accuracy meets the ±20mV specification for voltages below 2.0V.

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

This part belongs to the XC6503 series of low-power, high-speed LDO regulators from Torex Semiconductor. The series offers various output voltages and package options, including USP-4, SOT-25, and SOT-89 variants. The B-type specifically adds a pull-down resistor to the CE pin to prevent unstable operation when the pin is left open.

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

XC6503B12AMR (without -G suffix) for identical electrical performance without RoHS/Halogen-free certification.