MAX8559ETA18+T

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

The MAX8559ETA18+T is a dual low-dropout linear regulator manufactured by Analog Devices Inc./Maxim Integrated. It operates from an input voltage range of 2.5V to 6.5V and provides two independent fixed output voltages of 1.8V each, delivering up to 300mA per channel. The device features a typical quiescent current of 115µA per LDO and maintains a maximum dropout voltage of 120mV at a 100mA load. It includes independent shutdown controls, short-circuit protection, and thermal-overload protection. The component is housed in an 8-pin TDFN-EP package with an exposed paddle for thermal dissipation.

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

• Dual low-noise regulators with independent logic-controlled shutdown inputs
• Internal P-channel MOSFET pass transistors for extended battery life
• Integrated short-circuit and thermal-overload protection mechanisms

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

• Cellular and cordless phones
• PDAs and palmtop computers
• Notebook computers
• Digital cameras
• Wireless LAN cards

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

Verify the specific ordering suffix against official documentation to confirm lead-free status and exact factory preset output voltages. Confirm package type matches the required footprint. Check manufacturer notices regarding product lifecycle status and availability constraints before finalizing procurement plans.

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

Select this component for applications requiring dual independent power rails with low noise characteristics. Ensure input voltage remains within the specified 2.5V to 6.5V range. Verify that the required output currents do not exceed the 300mA limit per channel. Consider the TDFN package for superior thermal performance compared to alternative packages.

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

This part belongs to the MAX8559 family of dual low-dropout linear regulators. The series is designed primarily for battery-powered portable electronics. It offers factory-preset output voltages ranging from 1.5V to 3.3V. The device integrates internal feedback dividers and error amplifiers to maintain precise regulation under varying load conditions.

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

Consult the manufacturer's official cross-reference documentation for verified substitute part numbers. Ensure any replacement maintains identical pin configurations, electrical specifications, and package dimensions.