Integrated, Step-Down Switching Regulator

The MAX20745 is a fully integrated, highly efficient switching regulator for applications operating from 4.5V to 16V and requiring up to 25A maximum load. This singlechip regulator provides extremely compact, high-efficiency power-delivery solutions with high-precision output voltages and excellent transient response for networking, datacom, and telecom equipment.

The IC offers a broad range of programmable features through capacitors and resistors connected to dedicated programming pins. Using this feature, the operation can be optimized for a specific application, reducing the component count- and/or setting-appropriate trade-offs between the regulator's performance and system cost. Ease of programming enables using the same design for multiple applications.

The MAX20745 includes protection capabilities. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.

Applications

* Communications Equipment * I/O * Memory VDDQ * Networking Equipment * Point-of-Load Voltage Regulators * Servers and Storage Equipment * μP Chipsets

* High Power Density and Low Component Count

* Overall Solution Size: 509mm2 Including Inductor and Output Capacitors* 90.8% Peak Efficiency: VDDH = 12V and VOUT = 1V* Fast Transient Response: Supports Up to 300A/μs Load-Step Transients