MAX77827BEFD+

Voltage Regulators - DC DC Switching Regulators Overview

The MAX77827BEFD+ is a synchronous buck-boost DC/DC converter manufactured by Analog Devices Inc./Maxim Integrated. It operates with an input voltage range of 1.8 V to 5.5 V and provides an adjustable output voltage from 2.3 V to 5.3 V. The device features a switch current limit of 1.8 A and a nominal switching frequency of 2.5 MHz. It achieves a peak efficiency of 96% and maintains a typical quiescent current of 6 µA. The component is housed in a 12-WLP package measuring 1.61 mm x 2.01 mm.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology enables seamless transition between step-down and step-up modes for single-cell lithium-ion battery applications.
• Ultra-low quiescent current of 6 µA extends battery life in portable devices.
• Integrated GPIO pins support forced PWM mode selection and power-good indication.
• Comprehensive protection features include over-current, thermal shutdown, and active output discharge.

Voltage Regulators - DC DC Switching Regulators Applications

• Single-cell lithium-ion battery powered equipment
• Smartphones and portable electronic devices
• Wearable technology
• IoT and NB-IoT modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix FD against official datasheets to confirm pinout and package dimensions match your PCB layout requirements. Confirm availability status as supply may be limited. Ensure operating temperature ranges align with your design specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for single-cell lithium-ion systems requiring high efficiency across varying load conditions. The 1.8 A switch current rating suits moderate power applications where minimizing external component size is critical. Consider the 2.5 MHz frequency for balancing EMI performance and passive component size.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX77827 family of tiny buck-boost converters designed for space-constrained portable electronics. It integrates control algorithms for optimal transient response and efficiency. The WLP package allows for minimal footprint usage compared to traditional regulator solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for MAX77827 variants with different current ratings or packaging options if electrical parameters require adjustment. Verify compatibility with existing firmware or hardware control signals when substituting within the same product family.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current capability?

The device supports up to 1.6 A in buck mode and 900 mA in boost mode under specific input/output voltage conditions.

How is the output voltage adjusted?

The output voltage is programmable via a single external resistor, allowing adjustment between 2.3 V and 5.3 V.