XC6220B111MR-G

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

The XC6220B111MR-G is a fixed-output low dropout regulator manufactured by Torex Semiconductor Ltd. It provides a nominal output voltage of 1.1V 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 SOT-25-5 surface-mount package and includes built-in thermal shutdown, overcurrent protection, and CL auto-discharge capabilities.

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

• Integrates Green Operation function for automatic mode switching between high speed and power save states based on load conditions
• Features CL auto-discharge circuitry that rapidly discharges the output capacitor when the control enable pin is deactivated
• Incorporates inrush current prevention circuitry to limit startup surge currents and minimize power supply fluctuations
• Includes internal thermal shutdown and overcurrent protection circuits to safeguard against excessive junction temperatures and load faults

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 MR-G confirms the SOT-25-5 package configuration and standard CE functionality without pull-down resistors. Ensure compatibility with ceramic output capacitors as specified in the datasheet phase compensation requirements. Confirm RoHS compliance status matches project environmental standards before finalizing procurement orders.

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

Select this component when a stable 1.1V rail is required from inputs up to 6.0V with high efficiency under varying loads. The B-series designation indicates integrated CL auto-discharge, which is critical for systems requiring rapid output voltage decay upon shutdown. Verify that the application environment remains within the -40°C to +85°C operating temperature range for guaranteed performance.

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

This part belongs to the XC6220 series of CMOS voltage regulators designed for battery-powered applications. The series emphasizes extended battery life through low quiescent current operation and ultra-low dropout characteristics. The B-type variants specifically include auto-discharge features not present in A-type semi-custom versions, offering enhanced system control during standby periods.

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

XC6220B111PR-G (SOT-89-5 package)

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

How does the Green Operation function affect the switching behavior?

The Green Operation function automatically switches the IC between High Speed mode and Power Save mode based on the output current level, optimizing efficiency across different load conditions.

What is the purpose of the CL auto-discharge feature in the B-series?

The CL auto-discharge feature uses an internal N-channel transistor to rapidly discharge the output capacitor when the CE pin is set to a low level, shortening the time required for the output voltage to reach the ground level.