XC6503B34AMR-G

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

The XC6503B34AMR-G is a CL capacitor-less 500mA high-speed CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 3.4V with ±1% accuracy (2.0V to 5.0V 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 190mV 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 circuitry
• Integrated chip enable function for power management control
• Built-in CL discharge resistance for rapid output voltage decay during standby
• 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 configuration required for your design. Confirm that the B-type designation includes the necessary CE pin pull-down resistor and CL discharge functionality. Ensure the ordering code matches the exact 3.4V output requirement and packaging quantity specifications provided in the official datasheet.

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

Select this component when a stable 3.4V rail is needed without external output capacitors to save board space. The B-series variant is suitable for applications requiring active shutdown via the CE pin and fast output discharge. Verify that the input voltage remains above the minimum operating threshold and that the load current does not exceed the 500mA maximum rating under all thermal conditions.

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

This part belongs to the XC6503 series of low-dropout regulators designed for portable electronics. The series offers various output voltages from 1.2V to 5.0V in precise increments. The B-type specifically adds chip enable control and auto-discharge capabilities compared to the basic P-type, making it ideal for battery-powered devices requiring efficient power management and quick response times.

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

XC6503B34AMR

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

Does the XC6503B34AMR-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 XC6503B series?

The CE pin allows the user to turn the entire circuit ON or OFF. A low-level signal shuts down the IC, activating the internal CL discharge resistance to quickly lower the output voltage.