CAT6218-300TDGT3

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

The CAT6218-300TDGT3 is a fixed-output low dropout regulator from onsemi, providing a stable 3.00 V output with a maximum current of 300 mA. It operates within an input voltage range of 2.3 V to 5.5 V and features a typical power supply rejection ratio (PSRR) of 64 dB. The device ensures precise regulation with a line regulation of 0.1 %/V and load regulation of 0.7 %. Designed for surface-mount applications, it utilizes a TSOT-23-5 package and functions reliably across an extended temperature range from -40 °C to +125 °C.

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

• Provides fast response time during load current and line voltage changes
• CMOS technology enables efficient low dropout performance
• Fixed 3.00 V output eliminates external resistor requirements

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

• Portable battery-powered devices requiring stable 3.00 V rails
• Embedded systems needing fast transient response
• Low noise analog circuit power supplies

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

Verify the specific suffix TDGT3 against the manufacturer's latest datasheet to confirm pinout and electrical characteristics. Confirm RoHS compliance status through official documentation before integration. Check for obsolescence notices as component availability may vary by region. Ensure the TSOT-23-5 footprint matches your PCB design constraints.

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

Select this component when a fixed 3.00 V output is required without external feedback networks. It is suitable for designs prioritizing fast transient response over adjustable voltage flexibility. Consider the 300 mA current limit and 5.5 V maximum input voltage when sizing the power stage. The TSOT-23-5 package is ideal for space-constrained portable electronics.

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

This part belongs to the CAT6218 series of CMOS low dropout regulators. The series is characterized by high PSRR and fast transient response capabilities. Unlike adjustable variants, this specific model provides a fixed output voltage, simplifying board layout by removing external resistors. It is designed for applications requiring stable power delivery in compact form factors.

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

Consult onsemi documentation for direct replacements. Verify that any substitute maintains the 300 mA output current, 3.00 V fixed output, and TSOT-23-5 package compatibility. Ensure thermal and electrical specifications match the original design requirements.