数据手册：MAX15108 尺寸最小(2mm x 2.5mm)的8A、DC-DC方案，内置MOSFET .pdf [英文Rev.1(PDF,2.2MB)]
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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.
产品关键特性
- 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
| 应用与使用范围
- 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
|
Typical Operating Circuit
芯片订购型号
| 订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
| MAX15108EWP+ | 生产中 | WLP；20引脚；5.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX15108EWP+T | 生产中 | WLP；20引脚；5.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
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