XC6221B192MR-G

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

The XC6221B192MR-G is a fixed-output low dropout regulator manufactured by Torex Semiconductor Ltd. It provides a nominal output voltage of 1.9V with a maximum continuous output current of 200mA. The device operates within an input voltage range of 1.6V to 6.0V and features a typical dropout voltage of 80mV at 100mA load. It incorporates a CE control pin for active-high enable functionality and includes internal CL auto-discharge circuitry. The unit is housed in a surface-mount SOT-25-5 package and supports operation across an ambient temperature range of -40°C to +85°C.

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

• Integrates an internal charge pump auto-discharge switch that rapidly pulls the output voltage to ground upon shutdown.
• Utilizes laser trimming technology during manufacturing to ensure precise factory-set output voltage accuracy.
• Employs a fold-back current limiting mechanism that functions as both an output current limiter and short-circuit protection.

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

• Smart phones
• Portable game consoles
• Digital still cameras
• Mobile devices

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

Verify the specific suffix 'MR-G' corresponds to the SOT-25 package format and reel order quantity. Confirm the 'B' designation indicates the presence of the CL auto-discharge feature without an internal pull-down resistor on the CE pin. Ensure compliance requirements match the Halogen and Antimony-free RoHS status indicated by the '-G' suffix.

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

Select this component when a fixed 1.9V rail is required with minimal quiescent current consumption. The inclusion of the CL auto-discharge function makes it suitable for battery-powered applications requiring rapid power-off states. Verify that the application load does not exceed the 200mA maximum rating and that the input voltage remains within the specified operational limits.

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

This part belongs to the XC6221 series of high-speed, low-noise CMOS regulators. The series offers various output voltages selectable in 0.05V increments. The 'B' type variant specifically distinguishes itself by including the capacitor discharge function while lacking the internal pull-down resistor found in the 'C' and 'D' types.

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

How does the XC6221B192MR-G handle output voltage during shutdown?

It utilizes an internal N-channel transistor and auto-discharge resistance to actively discharge the electric charge from the output capacitor, allowing the VOUT pin to quickly return to the VSS level.

What is the logic requirement for the CE pin?

The CE pin requires an active-high signal. A high-level input (1.2V to 6.0V) turns the IC on, while a low-level input (≤0.3V) turns it off.