MAX8840ELT18+T

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

The MAX8840ELT18+T is a fixed-output ultra-low-noise, low-dropout linear regulator delivering up to 150mA. It provides a preset 1.8V output with a maximum dropout voltage of 120mV at 120mA load. The device operates within an input voltage range of 2V to 6V and maintains a typical ground current of 40µA. It features overcurrent and thermal shutdown protection, ensuring reliable operation across a temperature range of -40°C to +85°C.

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

• Ultra-low noise architecture designed for sensitive analog circuits
• Space-saving µDFN package optimized for board area reduction
• Integrated p-channel MOSFET pass transistor for extended battery life
• Built-in overcurrent and thermal overload protection mechanisms

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

• Cellular and cordless phones
• PDA and palmtop computers
• Wireless LANs
• Digital cameras
• Portable and battery-powered equipment

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 voltage. Confirm that the component matches the required 6-pin µDFN footprint dimensions. Ensure compatibility with standard ceramic capacitors as specified in the stability guidelines before finalizing procurement specifications.

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

Select this regulator when minimizing printed circuit board space is critical due to its compact µDFN form factor. It is suitable for applications requiring stable power delivery under varying load conditions without external bypass capacitors. Consider the fixed 1.8V output constraint and ensure the input voltage remains within the specified operational limits for optimal performance.

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

This component belongs to the MAX884x family of ultra-low-noise linear regulators manufactured by Analog Devices / Maxim Integrated. The series includes variants with different output configurations, such as adjustable outputs or alternative preset voltages. All members share the same physical package and core architectural design principles for portable electronics.

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

MAX8840ELT18+T

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

Does the MAX8840ELT18+T require an external bypass capacitor?

No, the MAX8840ELT18 variant does not require an external bypass capacitor, which helps achieve the smallest possible PC board area.

What type of pass transistor is used in this regulator?

The device utilizes a p-channel MOSFET series pass transistor, which reduces quiescent current compared to designs using PNP transistors.