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MAXREFDES1049: Low EMI, 5V/3.5A, Synchronous Buck DC-DC Converter Using the MAX17504

MAXREFDES1049

参考设计免责声明 参照  重要声明和免责声明  涵盖参考设计和其他Maxim资源

描述

The MAXREFDES1049 is a DC-DC buck power supply that delivers up to 3.5A at 5V from a 7.5V to 60V supply voltage. It is designed for equipment that needs to pass the electromagnetic interference (EMI) compliance testing.

The MAXREFDES1049 employs techniques that use the buck regulators to generate voltage lower than the input voltage. This document explains how the MAX17504 peakcurrent- mode PWM converter can be used to generate 5V from an input voltage of 7.5V to 60V. This document also illustrates how to achieve high EMI performance using a proper filter with good PCB layout and shielding techniques. This reference design passed the conducted emission (CE) test of CISPR 22 class B.

The MAX17504 high-efficiency, high-voltage, synchronously rectified step-down converter with dual integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 3.5A and generate output voltage from 0.9V to 90% VIN. Built-in compensation across the output voltage range eliminates the need for external components. The feedback (FB) regulation is accurate to within ±1.1% over -40°C to +125°C. The device is available in a compact (5mm x 5mm) TQFN lead (Pb)-free package with an exposed pad. Simulation models are available.

The MAXREFDES1049 is a DC-DC buck power supply that delivers up to 3.5A at 5V from a 7.5V to 60V supply voltage. It is designed for equipment that needs to pass the electromagnetic interference (EMI) compliance testing.

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设计,建造,测试

图中的电路板已完全组装并经过测试。不可出售。

 

参数化

输入类型 Vin(Min) Vin(Max) Iout(Max) 单路/多路输出 Vout(V) Pout(W) 隔离/非隔离 拓扑
- 7.5 60 3.5 - 4.97 17.5 Non-Isolated -

参数化

输入类型 -
Vin(Min) 7.5
Vin(Max) 60
Iout(Max) 3.5
单路/多路输出 -
Vout(V) 4.97
Pout(W) 17.5
隔离/非隔离 Non-Isolated
拓扑 -

Maxim设备 (1)

器件号 名称 产品线 购买 设计套件和评估模块
MAX17504 4.5V–60V、3.5A、高效率、同步降压DC-DC转换器,带内部补偿 开关稳压器 立即购买 设计套件

Maxim设备 (1)

器件号 产品线
开关稳压器
4.5V–60V、3.5A、高效率、同步降压DC-DC转换器,带内部补偿

设计资料 (4)

标题 类型 尺寸 日期
maxrefdes1049-pcb PDF 2MB 2019-05-16
maxrefdes1049-schematic PDF 16KB 2019-05-16
MAXREFDES1049 Design Verification Testing PDF 268KB 2019-05-16
maxrefdes1049-bom PDF 91KB 2019-05-16
日期 类型
2019-05-16

maxrefdes1049-pcb

(PDF, 2MB)

2019-05-16

maxrefdes1049-schematic

(PDF, 16KB)

2019-05-16

MAXREFDES1049 Design Verification Testing

(PDF, 268KB)

2019-05-16

maxrefdes1049-bom

(PDF, 91KB)

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