MAX15108中文资料高效、8A、电流模式同步整流降压型开关稳压器数据手册ADI规格书

描述 Description

The MAX15108 high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches delivers up to 8A of output current. The regulator operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 95% of the input voltage, making the device ideal for distributed power systems, portable devices, and preregulation applications.
The IC utilizes a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.
The regulator offers a selectable skip-mode functionality to reduce current consumption and achieve a higher efficiency at light output load. The low RDS(ON) integrated switches ensure high efficiency at heavy loads while minimizing critical inductance, making the layout design a much simpler task with respect to discrete solutions. The IC's simple layout and footprint assures first-pass success in new designs.
The regulator features a 1MHz, factory-trimmed fixed-frequency PWM mode operation. The high switching frequency, along with the PWM current-mode architecture allows for a compact, all ceramic capacitor design.
The IC features a capacitor-programmable soft-start to reduce input inrush current. Internal control circuitry ensures safe-startup into a prebiased output. Power sequencing is controlled with the enable input and power-good output.
The IC is available in a 20-bump (4 x 5 array), 2.5mm x 2mm, WLP package and is fully specified over the -40°C to +85°C temperature range.

特性 Features

• Continuous 8A Output Current
• Efficiency up to 96%
• ±1% Accuracy Over Load, Line, and Temperature
• Operates from a 2.7V to 5.5V Supply
• Adjustable Output from 0.6V to 0.95 x VIN
• Programmable Soft-Start
• Safe Startup into Prebiased Output
• External Reference Input
• 1MHz Switching Frequency
• Stable with Low-ESR Ceramic Output Capacitors
• Skip Mode or Forced PWM Mode
• Enable Input and Power-Good Output for Power-Supply Sequencing
• Cycle-by-Cycle Overcurrent Protection
• Fully Protected Features Against Overcurrent and Overtemperature
• Input Undervoltage Lockout
• 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package

应用 Application

• 基站
• DDR存储器
• 分布式供电系统
• 笔记本电脑电源
• 便携式设备
• 服务器电源

简介

MAX15108属于集成电路（IC）的DCDC开关稳压器。由制造生产的MAX15108稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。