XC6222B391PR-G

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

The XC6222B391PR-G is a high-speed low-dropout (LDO) voltage regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 3.9 V with a maximum output current of 700 mA. The device operates within an input voltage range of 1.7 V to 6 V and features a typical dropout voltage of 120 mV. Key electrical specifications include a quiescent current of 100 µA, a power supply rejection ratio (PSRR) of 65 dB at 1 kHz, and a line regulation of 0.01 %/V. The unit is housed in a SOT-89-5 surface-mount package and supports an operating temperature range from -40 °C to +85 °C.

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

• Integrates P-channel driver FET for high-speed transient response
• Includes built-in overcurrent protection and thermal shutdown circuits
• Features enable control pin for power management optimization

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

• Battery-powered portable electronic devices
• General-purpose linear voltage regulation in PMIC systems
• Power supply stages for microcontrollers and sensors

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

Verify the specific suffix PR-G against official Torex documentation to confirm RoHS compliance and lead-free status. Confirm the SOT-89-5 package variant matches design requirements. Cross-reference datasheet revision dates to ensure parameter accuracy. Validate that the fixed 3.9 V output aligns with target circuit loads before procurement.

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

Select this component when a fixed 3.9 V rail is required with up to 700 mA load capability. The low quiescent current suits battery applications. Ensure input voltage remains between 1.7 V and 6 V. Verify thermal dissipation limits in the SOT-89-5 package under expected ambient conditions and load profiles.

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

This part belongs to the XC6222 series of high-speed LDO regulators from Torex Semiconductor. The series utilizes a P-channel output transistor architecture to achieve fast response times. The B-series designation typically indicates specific output voltage options within the broader product family, standardized across various packaging configurations.

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

XC6222B391MR-G offers identical electrical performance in a SOT-25-5 package.