XC6220D401PR-G

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

The XC6220D401PR-G is a CMOS low dropout regulator from Torex Semiconductor, packaged in SOT-89-5. It provides a fixed output voltage of 4.0V with a maximum continuous output current of 1A. The device operates within an input voltage range of 1.6V to 6.0V and features Green Operation technology for automatic switching between high-speed and power-save modes. Key electrical characteristics include a typical supply current of 50μA in high-speed mode and 8μA in power-save mode. It incorporates built-in overcurrent protection, thermal shutdown, and an inrush current prevention circuit.

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

• Integrates Green Operation function to automatically switch between high-speed and power-save modes based on load current levels.
• Includes CL auto-discharge capability via an internal N-channel transistor when the CE pin is pulled low.
• Features a built-in CE pull-down resistor that fixes the control logic to a low level state when the pin is open.
• Equipped with comprehensive protection circuits including overcurrent limiting, thermal shutdown, and inrush current suppression.

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

• Optical disk drives
• Magnetic disk drives
• Digital still cameras
• Camcorders
• Digital audio equipment

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

Verify the specific ordering suffix PR-G confirms the SOT-89-5 package type and 1000-piece reel quantity. Ensure the D-series designation matches requirements for CE pull-down resistor and CL auto-discharge functionality. Confirm RoHS compliance and lead-free status as indicated by the -G suffix before finalizing procurement specifications.

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

Select this component for applications requiring a fixed 4.0V output with up to 1A load capacity. The D-series variant is suitable where defined standby behavior via a pull-down resistor and rapid output capacitor discharge are necessary. Verify that the required ceramic output capacitance aligns with stability recommendations for the 4.0V setting.

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

This part belongs to the XC6220 series of 1A LDO regulators known for high precision and low noise. The series utilizes laser trimming for accurate output voltage selection in 0.05V increments. The D-type classification specifically denotes the inclusion of both a CE pull-down resistor and CL auto-discharge features, distinguishing it from other series variants.

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

Direct substitutes within the same family include XC6220C401PR-G, which lacks CL auto-discharge but retains the pull-down resistor. Other voltage options such as XC6220B401PR-G or XC6220A401PR-G share the package but differ in CE configuration and discharge capabilities.

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

How does the CE pin behave when left unconnected?

Due to the integrated CE pull-down resistor, the IC enters a stand-by (OFF) mode when the CE pin is left open.

What happens to the output voltage when the CE pin is driven low?

The internal N-channel transistor activates to rapidly discharge the output capacitor (CL), quickly pulling the VOUT pin voltage down to the VSS level.