MAX8556ETE+T

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

The MAX8556ETE+T is a low-dropout linear regulator from Analog Devices/Maxim Integrated, operating within an input voltage range of 1.425V to 3.6V. It delivers up to 4A of continuous output current with a typical dropout voltage of 100mV at full load. The output voltage is adjustable from 0.5V to 3.4V, maintaining ±1% accuracy across load, line, and temperature variations. The device features an internal p-channel MOSFET pass transistor, ensuring low quiescent supply current of 800μA regardless of load conditions. It includes logic-controlled shutdown, built-in soft-start, short-circuit protection with foldback current limit, and thermal-overload protection.

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

• Internal p-channel MOSFET pass transistor eliminates the need for external charge pumps or additional supplies
• Logic-controlled shutdown mode reduces quiescent current significantly for power efficiency
• Integrated protection mechanisms include short-circuit foldback limiting and thermal overload shutdown
• Built-in soft-start functionality manages inrush current during initial power-up sequences

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

• Servers and storage devices
• Networking equipment
• Base stations
• Optical modules
• Point-of-load supplies

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

Verify the specific suffix 'ETE+' against official ordering information to confirm the -40°C to +105°C industrial temperature range and Power-OK (POK) feature. Ensure compatibility with the 16-pin TQFN package dimensions and exposed paddle thermal requirements. Confirm RoHS compliance status through manufacturer documentation before finalizing procurement specifications.

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

Select this component when ultra-low input voltage operation below 1.5V is required alongside high current delivery capabilities. The POK output distinguishes it from the MAX8557 variant, which provides a Power-On Reset signal instead. Consider the thermal resistance characteristics of the PCB layout, as the exposed paddle requires proper grounding for optimal heat dissipation under heavy load conditions.

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

This part belongs to the MAX8556/MAX8557 family of ultra-low-input-voltage LDO regulators designed by Maxim Integrated. These devices utilize BiCMOS process technology and are housed in a compact 16-pin TQFN package measuring 5mm x 5mm. The family addresses applications demanding efficient power regulation from minimal voltage headroom while maintaining stability and transient response performance.

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

The MAX8557ETE+ serves as a functional alternative within the same series, differing primarily by offering a Power-On Reset (POR) output instead of the Power-OK (POK) signal found in the MAX8556. Both share identical electrical parameters, pin configurations, and thermal characteristics, allowing for potential interchangeability if the specific status output requirement is flexible.