CAT6243-ADJMT5T3

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

The CAT6243-ADJMT5T3 is a CMOS Low Dropout (LDO) voltage regulator manufactured by ON Semiconductor, formerly Fairchild. It provides a maximum output current of 1 Ampere with an adjustable output voltage range. The device features low quiescent current and high Power Supply Rejection Ratio (PSRR). It operates within an input voltage range of 2.7 V to 6 V. The component is housed in a SOT-23-5 package, suitable for space-constrained portable applications.

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

• Adjustable output voltage capability via external resistor divider
• High power supply rejection ratio for noise-sensitive circuits
• Low quiescent current consumption for battery efficiency
• Integrated thermal shutdown and current limit protection

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

• Portable consumer electronics requiring stable voltage rails
• Battery-powered devices needing extended operational life
• Embedded systems with noise-sensitive analog components
• General-purpose low-dropout regulation in compact form factors

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

Verify the manufacturer designation as ON Semiconductor, resulting from corporate acquisitions, rather than strictly Fairchild. Confirm the specific suffix MT5T3 corresponds to the SOT-23-5 tape and reel packaging configuration. Ensure compatibility with the required output voltage setting resistors for your specific design application.

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

Select this component when a 1 A output current is required in a minimal footprint. It is appropriate for applications where input voltages are close to the desired output level. Consider the adjustable nature if fixed voltage variants do not match the system requirements. Verify thermal performance under maximum load conditions.

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

This part belongs to the CAT6243 series of LDO regulators. It shares functional similarities with other 1 A adjustable LDOs but is distinguished by its specific CMOS architecture and package type. The series is designed for low-noise applications common in modern portable electronics.

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

Direct pin-compatible replacements may include other 1 A adjustable LDOs in SOT-23-5 packages. Verify electrical parameters such as dropout voltage and PSRR before substitution. Check for availability from alternative manufacturers offering equivalent performance specifications.