MAX77533BEWC33+T

Overview

The MAX77533BEWC33+T is a high-efficiency, synchronous step-down DC-DC converter manufactured by Analog Devices Inc. (Maxim Integrated). It operates with an input voltage range of 2.7V to 5.5V and delivers a fixed output voltage of 3.3V. The device supports up to 3A output current and features a switching frequency selectable between 1MHz and 2.2MHz. Key electrical parameters include a quiescent current of 14µA in active mode and 0.6µA in shutdown mode. It integrates soft-start, overcurrent protection, and thermal shutdown within a compact 6-bump WLP package.

Feature Summary

• Integrates two N-channel power switches for high efficiency across load ranges
• Features programmable switching frequency to optimize external component size
• Includes comprehensive protection mechanisms such as overcurrent and thermal shutdown

Applications

• Portable consumer electronics requiring efficient power management
• Battery-powered devices needing extended operational life
• Embedded systems with strict space constraints

Procurement Notes

Verify the specific suffix 'B' indicates temperature grade or revision against the official datasheet. Confirm the 'WLP' package type matches your PCB footprint requirements. Check for RoHS compliance status in the latest documentation. Ensure availability through authorized distributors due to potential lifecycle changes.

Selection Notes

Select this component when a small form factor and high efficiency are critical for low-voltage applications. Compare the 3A current capability against your peak load requirements. Evaluate the trade-off between the 1MHz and 2.2MHz frequencies regarding inductor size versus transient response needs.

Part Context

This part belongs to the MAX7753x family of ultra-small synchronous buck converters. It is designed for applications where board space is limited, utilizing a wafer-level package. The series targets mobile and IoT markets requiring reliable power conversion from single-cell lithium-ion sources.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified alternatives. Consider parts from the same family with different output voltages or current ratings if system requirements change.