Integrated, Step-Down Switching Regulator

The MAX20733 is a fully integrated, highly efficient switching regulator for applications operating from 4.5V to 16V and requiring up to 35A maximum load. This singlechip regulator provides extremely compact, high-efficiency power-delivery solutions with high-precision output voltages and excellent transient respondse 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 MAX20733 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

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

* 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

* Optimized Component Performance and Efficiency with Reduced Design-In Time

* Increased Power-Supply Reliability with System anIC Self-Protection Features

* Differential Remote Sense with Open-Circuit Detection

* Hiccup Overcurrent Protection

* Programmable Thermal Shutdown