MAX77533

The MAX77533 is a synchronous 1.5A step-down DC-DC converter optimized for portable 2-cell and 3-cell batteryoperated and USB-C applications. The converter operates on an input supply between 3V and 14V. Output voltage is adjustable between 0.8V and 5V in 50mV steps through an I2C serial interface (internal feedback) or 0.8V to 99% of the supply voltage with external feedback resistors. Factory-programmed default voltages of 1.2V, 1.8V, and 3.3V with internal feedback are offered to reduce component count for common rails. The device features a low-IQ SKIP mode which allows excellent efficiency at light loads. Dedicated enable and power-OK (POK) pins allow simple hardware control. An I2C serial interface is optionally used for full configuration and control for dynamic voltage scaling and system power optimization. Built-in undervoltage lockout (UVLO), output active discharge, cycle-by-cycle current limit, thermal shutdown, and short-circuit protection ensure safe operation under abnormal operating conditions. The MAX77533 is available in a 12-bump, 0.4mm pitch wafer-level package (WLP).

Evaluation report, including

1. the "ESTIMATED" process technology,
2. die size,
3. the "ESTIMATED" number of poly and metal layers
4. Die photos with low resolution

Evaluation only, the work scope of high-resolution chip imaging area and circuit analysis is opened to discussion

• If you decide to perform a circuit analysis, we will provide a complete delivery. including BrigenOne, EDIF format schematics, and PDF file
• The project is still in the "evaluation" phase, and the work scope is open to discussing.
• The information we provide about this project will be somewhat uncertain, as we have not yet performed high-resolution wafer images of each layer.