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Integrated, Step-Down Switching Regulator with PMBus

Monolithically Integrated, PMBus Enabled Step-Down Switching Regulator with High Power Density and Low Component Count

产品详情

主要特征

应用/用途

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 16
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 35
Switch Type Internal
Preset VOUT (V) 1
Output Adjust. Method Digital/VID
Preset
Resistor
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 800
400
600
Design Tools EE-Sim
Package/Pins FCQFN/15
Budgetary
Price (See Notes)
4.1
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简化框图

技术文档

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参量

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 16
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 35
Switch Type Internal
Preset VOUT (V) 1
Output Adjust. Method Digital/VID
Preset
Resistor
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 800
400
600
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=5711', '')
Package/Pins FCQFN/15
Budgetary
Price (See Notes)
4.1

主要特征

  • High-Power Density and Low Component Count
    • Overall Solution Size 509mm2 Including Inductor and Output Capacitors
    • 90.8% Peak Efficiency with 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
    • PMBus-Compliant Interface for Telemetry and Power Management
    • Voltage, Current and Temperature Reporting through Digital Bus
  • Increased Power-Supply Reliability with System and IC Self-Protection Features
    • Differential Remote Sense with Open-Circuit Detection
    • Hiccup Overcurrent Protection
    • Programmable Thermal Shutdown

应用/用途

  • 通信
  • 网络
  • 服务器和存储设备

描述

The MAX20743 is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 35A maximum load. This single-chip 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 either the PMBus or through a capacitor and resistor connected to a dedicated programming pin. 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 IC includes protection and telemetry features. 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.

简化框图

MAX20743: Block Diagram MAX20743: Block Diagram Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索您所需的答案。

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心