XC6220B18BPR-G

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

The XC6220B18BPR-G is a CMOS low dropout regulator from Torex Semiconductor, packaged in SOT-89-5. It provides a fixed output voltage of 1.8V with a maximum continuous output current of 1A. The device features Green Operation technology, automatically switching between high-speed and power-save modes to minimize supply current at light loads. It includes built-in overcurrent protection, thermal shutdown, and an inrush current prevention circuit. The CE pin enables the output to be turned off for standby mode.

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

• Green Operation function switches between high-speed and power-save modes based on load current
• Built-in CL auto-discharge circuit rapidly discharges output capacitor when disabled
• Integrated inrush current prevention circuit limits startup surge current
• Fixed output voltage selectable in 0.05V increments via laser trimming

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 suffix B indicates standard configuration with CL discharge but no CE pull-down resistor. Confirm the PR-G designation corresponds to the SOT-89-5 package type. Ensure the final -G suffix confirms compliance with RoHS and halogen-free requirements as specified by the manufacturer.

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

Select this variant for applications requiring a fixed 1.8V rail with automatic power management. The B-type designation ensures the presence of the CL auto-discharge feature for faster shutdown response. Verify input voltage stays within the 1.6V to 6.0V range to maintain regulation and prevent damage.

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

This component belongs to the XC6220 series of 1A LDO regulators. The series utilizes CMOS technology to achieve high precision and low noise. The B-series specifically denotes devices equipped with CL auto-discharge functionality while lacking an internal CE pull-down resistor, distinguishing it from A, C, and D variants.

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

XC6220B181PR-G

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

How does the Green Operation function affect performance?

It automatically switches between high-speed and power-save modes based on output current levels to optimize efficiency.

What is the purpose of the CL auto-discharge feature?

It rapidly discharges the output capacitor when the CE pin is pulled low, shortening the time for the output voltage to reach the VSS level.