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MAXREFDES1032: 5A/12V Step-Down DC-DC Converter with Integrated HS Switch and External LS Switch Using the MAX17506

MAXREFDES1032

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描述

The MAX17506 is a high-efficiency switching regulator that delivers up to 5A load current at output voltages from 0.9V to (0.9 x VIN). The device integrates the highside MOSFET and operates over 4.5V to 60V, making it ideal for on-board point-of load and post-regulation applications.

The device features a peak current-mode control architecture. Built-in compensation across the output voltage range eliminates the need for external compensation components. The feedback regulation accuracy over -40°C to +125°C is ±1.4%.

Output overload hiccup protection and cycle-by-cycle peak-current limit provide for ultra-safe operation in short-circuit conditions.

In this document a step-down DC-DC converter using the MAX17506 is demonstrated for a 12V output application. The power supply delivers up to 5A at 12V.

特征

  • No Schottky-Synchronous Operation
  • Internal Compensation for Any Output Voltage
  • Built-In Soft-Start
  • 100kHz to 2.2MHz Adjustable Switching Frequency
  • 3.5μA Shutdown Current
  • Hiccup or Latchoff Mode Overload Protection
  • Programmable EN/UVLO Threshold
  • Overtemperature Protection

Icon

设计, 制作, 测试

图中的电路板已经完成封装和测试。不可售。

 

示意图

PCB布局

物料清单(BOM)

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
DC 24 36 5 - 12 60 Non-Isolated Synchronous Buck

参数化

输入类型 DC
Vin(Min) 24
Vin(Max) 36
Iout(Max) 5
单路/多路输出 -
Vout(V) 12
Pout(W) 60
隔离/非隔离 Non-Isolated
拓扑 Synchronous Buck

Maxim设备 (1)

器件号 名称 产品线 购买 设计套件和评估模块
MAX17506 4.5V–60V、5A、高效同步降压型DC-DC转换器,带内部补偿 开关稳压器 立即购买 Design Kits

Maxim设备 (1)

器件号 产品线
开关稳压器
4.5V–60V、5A、高效同步降压型DC-DC转换器,带内部补偿

设计资料 (3)

标题 类型 尺寸 日期
maxrefdes1032-bom PDF 206KB 2019-07-09
maxrefdes1032-pcb PDF 271KB 2019-07-09
maxrefdes1032-schematic PDF 214KB 2019-07-09
日期 类型
2019-07-09

maxrefdes1032-bom

(PDF, 206KB)

2019-07-09

maxrefdes1032-pcb

(PDF, 271KB)

2019-07-09

maxrefdes1032-schematic

(PDF, 214KB)

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