MAX77839AEWL+

Overview

The MAX77839AEWL+ is a low quiescent current buck-boost switching voltage regulator manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates with an input voltage range of 1.8 V to 5.5 V and provides a single regulated output adjustable from 2.3 V to 5.3 V. The device supports up to 2.5 A output current capability. It features a configurable GPIO pin for selecting Fixed Frequency Pulse Width Modulation (FPWM) mode or other control inputs. The component is housed in an 8-ball Wafer Level Package (WLP) suitable for surface mount installation. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Buck-boost topology enables stable regulation across wide input voltage variations relative to the output level.
• Configurable GPIO allows flexible selection between fixed frequency pulse width modulation and alternative control modes.
• Single-resistor adjustable output voltage simplifies circuit design and reduces component count.

Applications

• Portable lithium-ion single-cell communication devices
• Space-constrained portable electronics requiring high-voltage compact power conversion
• Industrial, automotive, and aerospace systems

Procurement Notes

Verify the specific suffix and package variant against official Analog Devices documentation before procurement. Confirm availability status as distribution channels may list limited stock or discontinued statuses. Ensure the selected part matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when designing circuits that require efficient power management across varying input voltages. The buck-boost architecture is suitable for applications where the input source may drop below or rise above the desired output level. Consider the WLP package size for dense PCB layouts and verify the 2.5 A current rating meets peak load requirements.

Part Context

This part belongs to the MAX7783x series of low IQ buck-boost converters designed for portable applications. It integrates power switches and control logic into a compact footprint. The series targets battery-powered devices needing extended runtime and reliable performance in harsh environments.

FAQ

What is the input voltage range for the MAX77839AEWL+?

The device supports an input voltage range from 1.8 V to 5.5 V.

How is the output voltage adjusted?

The output voltage is adjustable from 2.3 V to 5.3 V using a single external resistor divider.

What packaging does the MAX77839AEWL+ use?

It is available in an 8-ball Wafer Level Package (WLP).