XC6501D39AGR-G

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

The XC6501D39AGR-G is a high-speed, low-noise CMOS LDO regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 3.9V with a maximum output current of 200mA. The device operates within an input voltage range of 1.4V to 6.0V and features internal phase compensation, allowing stable operation without an external load capacitor (CL). Key electrical parameters include a typical dropout voltage of 150mV at 100mA, a supply current of 13μA, and a ripple rejection ratio of 50dB at 1kHz. The part includes CE control functionality with a pull-down resistor and an auto-discharge circuit for the output capacitor.

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

• Internal phase compensation enables stable regulation without requiring an external output capacitor.
• CE pin control allows switching between active mode and stand-by mode with ultra-low current consumption.
• Built-in CL auto-discharge function rapidly pulls the output voltage to ground when disabled.
• Fold-back current limit circuit provides protection against short circuits and overcurrent conditions.

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

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

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

Verify that the specific ordering suffix matches the required package type and environmental compliance standards. Confirm that the design utilizes the USP-4 package configuration correctly. Ensure the application circuit adheres to the recommended input and output capacitor specifications if used, despite the cap-less capability. Check that the CE pin logic levels align with the system's control signals for proper on/off operation.

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

Select this component when a fixed 3.9V output is required from a single-cell or dual-cell battery source. The D-type designation indicates the inclusion of both a CE pull-down resistor and an auto-discharge feature, which simplifies board layout and ensures safe shutdown states. Consider the 200mA current limit and thermal dissipation capabilities relative to the expected load profile and ambient temperature conditions.

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

This part belongs to the XC6501 series of high-speed LDO regulators designed for portable electronic applications. The series offers various output voltages and package options to suit different space and performance constraints. The D-type variant specifically integrates control features that enhance system reliability during power management transitions.

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

XC6501D391PR-G

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

Does the XC6501D39AGR-G require an external output capacitor?

No, the device features internal phase compensation that ensures stability without an external load capacitor (CL).

What is the function of the CL auto-discharge feature in the D-type series?

The CL auto-discharge feature rapidly discharges the electric charge stored in the output capacitor when the CE pin is set to a low level, quickly pulling the VOUT pin to the VSS level.