MAX15118

高效、18A、电流模式同步整流降压调节器,内置开关

尺寸最小(2mm x 3.5mm)的18A、DC-DC转换器方案,内置MOSFET


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说明

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 of output current in a small 2mm x 3.5mm package. The MAX15118 offers excellent efficiency with skip mode capability at light-load 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 utilizes 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. The MAX15118’s simple layout and footprint assure first-pass success in new designs.

Other features of the MAX15118 include a capacitor-programmable soft-start to reduce inrush current, safe startup into a prebiased output, and enable input and power-good output for power sequencing.

The regulator is available in a 28-bump (4 x 7), 2.10mm x 3.56mm WLP package, and is fully specified over the -40°C to +85°C extended temperature range.
MAX15118: Typical Operating Circuit MAX15118: Typical Operating Circuit 放大+

关键特性

  • Continuous 18A Output Current
  • ±1% Feedback Accuracy Over Load, Line, and Temperature
  • Operates from 2.7V to 5.5V Supply
  • Input Undervoltage Lockout
  • Adjustable Output Range from 0.6V Up to 0.94 x VIN
  • Programmable Soft-Start
  • Factory-Trimmed 1MHz Switching Frequency
  • Stable with Low-ESR Ceramic Output Capacitors
  • Safe-Startup into a Prebiased Output
  • External Reference Input
  • Selectable Skip Mode Option for Improved Efficiency at Light Loads
  • Enable Input/PGOOD Output Allows Sequencing
  • Remote Ground Sense for Improved Accuracy
  • Thermal and Overcurrent Protection
  • Tiny 2.10mm x 3.56mm, 28-Bump WLP Package

应用

  • 基站
  • DDR存储器
  • 分布式供电系统
  • 笔记本电脑
  • 服务器

MAX15118EVKIT: MAX15118评估板

技术资料

用户指南 5861 EE-SIM Design and Simulation Environment User Guide
设计指南 5133 Power-Supply Solutions for Altera FPGAs
设计指南 5132 Power-Supply Solutions for Xilinx FPGAs

质量和环境数据

申请可靠性报告: MAX15118 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX15118EWI+
  • MAX15118EWI+T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
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