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MAXREFDES1020:高效、电流模式、同步、DC-DC转换,带0.68V/4A输出

MAXREFDES1020

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 MAX15118 high-efficiency, current-mode step-down regulator with integrated power switches operates from 2.7V to 5.5V and delivers up to 18A output current in a small 2mm x 3mm package. The MAX15118 offers excellent efficiency with skip mode capability at lightload conditions, yet provides unmatched efficiency under heavy load conditions. The combination of small size and high efficiency makes this device suitable for both portable and nonportable applications.

The MAX15118 uses a current-mode control architecture with a high-gain transconductance error amplifier, which allows a simple compensation scheme and enables a cycle-by-cycle current limit with fast response to line and load transients. A factory-trimmed switching frequency of 1MHz (PWM operation) allows for a compact, all-ceramic capacitor design.

Integrated switches with low on-resistance ensure high efficiency at heavy loads while minimizing critical inductances.

Key Features

  • ±1% Feedback Accuracy Over Load, Line, and Temperature
  • Input Undervoltage Lockout
  • Programmable Soft-Start
  • Adjustable Soft-Start
  • External Reference Input
  • Selectable Skip Mode Option for Improved Efficiency at Light Loads

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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
DC 2.7 4.5 4 - 0.68 2.7 Non-Isolated Synchronous Buck

参数化

输入类型 DC
Vin(Min) 2.7
Vin(Max) 4.5
Iout(Max) 4
单路/多路输出 -
Vout(V) 0.68
Pout(W) 2.7
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
MAX15118 高效、18A、电流模式同步整流降压调节器,内置开关 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
高效、18A、电流模式同步整流降压调节器,内置开关

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