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MAX1718BEEI from MAXIM,MAXIM - Dallas Semiconductor

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MAX1718BEEI

Manufacturer: MAXIM, MAXI

Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II

Partnumber Manufacturer Quantity Availability
MAX1718BEEI MAXIM, MAXI 1851 In Stock

Description and Introduction

Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II The MAX1718BEEI is a step-down controller manufactured by Maxim Integrated (MAXI). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V  
- **Switching Frequency:** 300kHz (fixed)  
- **Output Current:** Up to 15A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin QSOP (Quad Flat Small Outline Package)  

### **Descriptions:**  
The MAX1718BEEI is a high-efficiency, synchronous step-down DC-DC controller designed for high-current, low-voltage applications. It is optimized for powering high-performance processors and other demanding loads. The device integrates PWM control, gate drivers, and protection features while requiring external MOSFETs for power conversion.  

### **Features:**  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Current-Mode Control:** Ensures fast transient response and stable operation.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overcurrent and Overtemperature Protection:** Enhances system reliability.  
- **Power-Good Output:** Monitors output voltage status.  
- **Low Dropout Operation:** Maintains regulation with minimal headroom.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II

Alternative Part Number

  • ISL6227CAZ --: Dual synchronous buck PWM controller with similar function and pin-compatible layout for notebook CPU/core supply applications.
  • TPS51124RGER --: Dual-channel synchronous buck controller offering comparable voltage regulation and efficiency for CPU core and I/O rails.
  • RT8205LZQW --: Dual synchronous buck controller with similar feature set and package, suitable as a drop-in functional replacement.
  • ISL6262CRZ --: Single-phase buck controller for CPU core regulation with comparable VID and PWM control features, widely used as a MAX1718 cross-reference in notebook power designs.
  • TPS51620RHBR --: Dual-phase synchronous buck controller for CPU/GPU rails with similar voltage-mode control and protection set, suitable functional replacement with layout review.
  • NCP5386MNR2G --: Multi-phase buck controller offering comparable current-mode regulation and VID interface, usable as an alternative after verifying pinout and compensation network.

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