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Maxim产品 - MAX15118介绍

MAX15118 - 高效、18A、电流模式同步整流降压调节器，内置开关

MAX15118是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX15118是高效、18A、电流模式同步整流降压调节器，内置开关，本站介绍了MAX15118的封装应用图解、特点和优点、功能等，并给出了与MAX15118相关的Maxim元器件型号供参考。

MAX15118 - 高效、18A、电流模式同步整流降压调节器，内置开关 - DC-DC开关调节器 - 尺寸最小(2mm x 3.5mm)的18A、DC-DC转换器方案，内置MOSFET - 美信半导体

产品概述

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 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 minimizingcritical 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.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 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
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