XC6220C33BPR-G

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

The XC6220C33BPR-G is a CMOS low dropout regulator from Torex Semiconductor, packaged in SOT-89-5. It provides a fixed output voltage of 3.3V with a maximum continuous output current of 1A for voltages between 1.2V and 5.0V. The device operates within an input voltage range of 1.6V to 6.0V and features Green Operation functionality, switching automatically between high-speed and power-save modes. It includes 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.
• Features a CE pull-down resistor that fixes the control logic to a low level when the pin is open, ensuring safe standby operation.
• Includes an internal N-channel transistor switch for rapid discharge of the output capacitor charge upon shutdown.
• Incorporates an inrush current prevention circuit to limit startup surge currents and minimize power supply fluctuations.

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

• Optical disk drives
• Magnetic disk drives
• Digital still cameras and camcorders
• Digital audio equipment

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

Verify the specific suffix 'C' indicates the inclusion of a CE pull-down resistor and absence of CL auto-discharge, distinct from other series variants. Confirm the 'PR-G' designation corresponds to the SOT-89-5 package format. 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 for applications requiring a fixed 3.3V rail with high efficiency under varying loads due to the automatic mode switching. The integrated CE pull-down resistor simplifies interface design by preventing undefined states. Consider the thermal dissipation capabilities of the SOT-89-5 package relative to the expected power loss at the target operating current.

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

This part belongs to the XC6220 series of 1A LDO regulators known for ultra-low dropout voltage and high precision. The series utilizes laser trimming technology for accurate output voltage selection in 0.05V increments. It is designed for battery-powered portable electronics where extending operational life through low quiescent current is critical.

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

XC6220C331MR-G (SOT-25 package)

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

How does the XC6220C series handle the CE pin if it is left unconnected?

The XC6220C series includes an internal CE pull-down resistor. If the CE pin is left open, the internal logic treats it as a low signal, placing the IC in the OFF state.

What is the primary difference between the XC6220C and XC6220D series regarding output discharge?

The XC6220C series lacks the CL auto-discharge feature, whereas the XC6220D series includes an internal N-channel transistor to rapidly discharge the output capacitor when the IC is turned off.