XC6221B09ANR-G

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

The XC6221B09ANR-G is a single-output linear regulator from the Torex Semiconductor XC6221 series, featuring a fixed output voltage of 0.90V and a maximum output current of 200mA. It operates within an input voltage range of 1.6V to 6.0V with a typical dropout voltage of 410mV at 100mA load. The device includes a CE control pin for active-high enable functionality and incorporates an internal auto-discharge circuit to rapidly pull the output to ground upon shutdown. Standard accuracy is specified at +2% for voltages above 1.50V. It utilizes low ESR ceramic capacitors for stability and offers high ripple rejection.

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

• Integrated CL auto-discharge function actively pulls the output voltage to the VSS level when the CE pin is driven low, ensuring rapid power-down response.
• Active High CE pin enables precise on/off control of the regulator without requiring external pull-down resistors.
• Capable of driving loads up to 200mA while maintaining stable operation with low ESR ceramic output capacitors.
• Fold-back current limiting circuit provides short-circuit protection and limits output current during overload conditions.

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 that the specific part number XC6221B09ANR-G corresponds to the SSOT-24 package type as indicated by the NR-G suffix in the official datasheet. Confirm the output voltage designation '09' aligns with the required 0.90V specification. Ensure compliance with environmental standards such as EU RoHS and Halogen-free requirements associated with the -G suffix before finalizing procurement orders.

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

Select this component when a fixed 0.90V supply is required with moderate current demands up to 200mA. The B-type designation indicates the presence of an internal auto-discharge resistor, which is critical if fast output discharge is needed upon shutdown. This model is suitable for battery-powered applications due to its low standby current and compatibility with small ceramic capacitors, reducing overall board space requirements.

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

This device belongs to the XC6221 series of high-speed, low-dropout CMOS regulators designed for portable electronics. The series distinguishes itself through laser-trimmed output voltage accuracy and ultra-low power consumption. The XC6221B variant specifically integrates an auto-discharge feature, differentiating it from the A-type which lacks this function but shares similar electrical performance characteristics regarding ripple rejection and operating voltage ranges.

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

XC6221A09ANR-G

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

How does the XC6221B series differ from the XC6221A series?

The primary difference is that the XC6221B series includes an internal CL auto-discharge switch that rapidly discharges the output capacitor when the CE pin is low, whereas the XC6221A series relies solely on internal resistors for discharge.

What is the logic level requirement for the CE pin?

The CE pin requires an Active High logic signal. A high voltage (typically 1.2V or higher) turns the regulator on, while a low voltage (0.3V or lower) turns it off.