XC6220B391ER-G

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

The XC6220B391ER-G is a fixed-output linear voltage regulator from the Torex Semiconductor XC6220 series. It provides a nominal output voltage of 3.9V 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. It utilizes a USP-6C package and includes built-in overcurrent protection, thermal shutdown, and CL auto-discharge capabilities.

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

• Green Operation function automatically switches between high-speed and power-save modes based on load current
• Built-in CL auto-discharge circuit rapidly discharges output capacitor when CE pin is low
• Integrated inrush current prevention circuit limits startup surge current
• Compatible with low ESR ceramic capacitors for output stabilization

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 that the specific part number XC6220B391ER-G matches the required 3.9V output voltage and USP-6C package configuration. Confirm the 'B' designation indicates the presence of the CL auto-discharge feature without a CE pull-down resistor. Ensure compliance with environmental standards such as EU RoHS and lead-free requirements before finalizing procurement specifications.

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

Select this component when a stable 3.9V supply is required with up to 1A load capability. The USP-6C package offers a compact footprint suitable for space-constrained designs. Consider the Green Operation feature for applications requiring efficient power management under varying load conditions. Verify that the input voltage remains within the specified operating range during all system states.

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

This device belongs to the XC6220 series of 1A LDO regulators featuring Green Operation. The series is characterized by high accuracy, low noise, and ultra-low dropout performance. Other variants in the series offer different output voltages and packages, including SOT-25 and SOT-89-5. The B-type designation specifically denotes standard configuration with CL auto-discharge but no CE pull-down resistor.

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

XC6220A391ER-G: Parameter equivalent variant without CL auto-discharge or CE pull-down resistor.