XC6222D421PR-G

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

The XC6222D421PR-G is a fixed-output low dropout (LDO) linear voltage regulator manufactured by Torex Semiconductor. It provides a fixed output voltage of 4.2 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 power supply rejection ratio (PSRR) of 65 dB at 1 kHz. Key electrical parameters include a quiescent current of 100 µA, a line regulation of 0.01 %/V, and a load regulation of 30 mV. The dropout voltage is specified at 280 mV, with a maximum power dissipation of 500 mW. It functions reliably across an operating temperature range from -40°C to +85°C.

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

• High-speed CMOS architecture for rapid transient response
• Integrated protection circuits including overcurrent, thermal shutdown, and reverse polarity prevention
• Low noise and high ripple rejection characteristics for clean power delivery
• Fixed output voltage configuration with high accuracy

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

• Portable electronic devices requiring stable low-voltage power supplies
• Battery-powered systems utilizing single-cell or dual-cell configurations
• Embedded control circuits in consumer electronics
• RF modules needing low-noise regulated voltage rails

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

Verify the exact part number suffix against official manufacturer documentation to confirm package type and output voltage. Ensure compatibility with your system's input voltage range and thermal requirements. Cross-reference specifications such as PSRR and dropout voltage with design constraints. Confirm RoHS compliance status through certified datasheets before procurement.

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

Select this component when a fixed 4.2 V output is required with up to 700 mA load capability. Consider the SOT-89-5 package for adequate thermal performance given the 500 mW power dissipation limit. Evaluate input voltage stability to ensure it remains above the minimum 1.7 V threshold. Verify that the 100 µA quiescent current aligns with battery life expectations for portable applications.

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

This device belongs to the XC6222 series of high-speed LDO regulators from Torex Semiconductor. The series is characterized by its CMOS technology, offering low power consumption and high precision. The XC6222D421PR-G specifically denotes the 4.2 V fixed output variant housed in the SOT-89-5 surface-mount package, designed for compact PCB layouts.

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

Consult official Torex Semiconductor documentation for verified substitute part numbers within the XC6222 family. Ensure any replacement maintains identical output voltage, current rating, and package dimensions. Verify functional equivalence regarding protection features and electrical performance metrics.