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MAX15303：6A Digital PoL DC-DC Converter with InTune Automatic Compensation

6A InTune Automatically Compensated Converter with PMBus Telemetry

The MAX15303 is a full-featured, flexible, efficient, 6A digital point-of-load (PoL) controller with integrated switching MOSFETs. It contains advanced power-management and telemetry features. Unlike PID-based digital power regulators, the device uses Maxim’s patented InTune™ automatically compensated, state-space control algorithm. The InTune control law is valid for both the small- and large-signal response and accounts for duty-cycle saturation effects. These capabilities result in fast loop transient response and reduce the number of output capacitors compared to competing digital controllers. To help maximize system efficiency and reduce overall parts count, the device uses Maxim’s BabyBuck regulator. The BabyBuck eliminates the need for an external bias supply. The BabyBuck can be configured in two different modes to maximize system flexibility. The device is designed to minimize the end customer’s design time. Automatic compensation eliminates the need for external compensation circuitry and allows changes to the output inductor and capacitor, without the need to manually redesign the compensation circuitry. An on-board PMBus™-compliant serial bus interface enables communication with a supervisory controller for monitoring and fault management. A full suite of power-management features eliminates the need for complicated and expensive sequencing and monitoring ICs. Basic DC-DC conversion operation can be set up through pin strapping and does not require user-configuration firmware. This allows for rapid development of the power-supply subsystem before board-level systems engineering is completed. Maxim provides support hardware and software for configuring the device. The MAX15303 is available in a 40-pin, 6mm × 6mm TQFN package with an exposed pad and operates over the -40°C to +85°C temperature range.

关键特性 InTune Automatic Compensation Simplifies and Speeds Design Ensures Stability While Optimizing Transient Performance State-Space Compensation Results in Fast Transient Response with Reduced Output Capacitance Out-of-the-Box Operation Enables Fast Prototyping Supports Pin-Strappable Configuration: Output Voltage, SMBus Address, Switching Frequency, Current Limit Easy to Use PMBus Interface for Configuration, Control, and Monitoring Flexible Sequencing and Fault Management Supports Voltage Positioning Configurable Soft-Start and Soft-Stop Time 300kHz to 1000kHz Fixed-Frequency Operation Integration Yields Small Solution Size Integrated High- and Low-Side MOSFETs Efficient On-Chip BabyBuck Regulator for Self-Bias Output Startup into a Prebiased Output Performance Optimized for Communication and Computing Systems Differential Remote Voltage Sensing Enables ±1.25% VOUT Accuracy over Temperature (-40°C to +85°C) 4.5V to 14V Wide Input Range Output Voltage Range from 0.5V to 5.25V External Synchronization

MAX15303: Functional Diagram 应用 基站设备 电源模块 路由器/交换机 服务器 存储系统

数据手册DataSheet

关键参数

开发工具

• MAX15303EVKIT1

技术资料

• PowerTool MAXPOWERTOOL002# Quick Start Guide
• EE-SIM Design and Simulation Environment User Guide
• MAX15303 PMBus Command Set User’s Guide
• Current Calibration Procedure for InTune Digital Power

质量和环境数据

• MAX15303.pdf

订购型号