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MAX8731AETI+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX8731AETI+T

Manufacturer: MAXIM

SMBus Level 2 Battery Charger with Remote Sense

Partnumber Manufacturer Quantity Availability
MAX8731AETI+T MAXIM 1507 In Stock

Description and Introduction

SMBus Level 2 Battery Charger with Remote Sense The **MAX8731AETI+T** is a power management IC (PMIC) manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from the manufacturer's datasheet:

### **Manufacturer:**  
- **MAXIM (Maxim Integrated)**  

### **Part Number:**  
- **MAX8731AETI+T**  

### **Package:**  
- **28-Pin TQFN-EP (5x5mm, Thin QFN with Exposed Pad)**  

### **Description:**  
The MAX8731AETI+T is a **high-efficiency, dual-output step-down controller** designed for **notebook computers** and other portable devices. It provides **synchronous buck regulation** for **CPU core and chipset power supplies**, supporting **high-performance power delivery** with low output voltage ripple.

### **Key Features:**  
1. **Dual-Output Buck Controllers:**  
   - Two independent PWM controllers for **core voltage (VCC) and chipset voltage (VDDQ)**.  
   - Supports **adjustable output voltages** (down to **0.7V**).  

2. **Wide Input Voltage Range:**  
   - **4.5V to 28V** input range (ideal for battery-powered systems).  

3. **High Efficiency:**  
   - **Synchronous rectification** for improved efficiency.  
   - **Adaptive on-time control** for fast transient response.  

4. **Programmable Switching Frequency:**  
   - Adjustable from **200kHz to 600kHz** (set by external resistor).  

5. **Protection Features:**  
   - **Overvoltage protection (OVP)**  
   - **Undervoltage lockout (UVLO)**  
   - **Thermal shutdown**  

6. **Additional Features:**  
   - **Power-good (PG) indicators** for both outputs.  
   - **Soft-start control** to limit inrush current.  
   - **Differential remote sensing** for accurate voltage regulation.  

### **Applications:**  
- Notebook computers  
- Portable devices  
- Core and chipset power supplies  

This information is sourced from **Maxim Integrated's official datasheet** for the **MAX8731AETI+T**. For detailed electrical characteristics and application circuits, refer to the manufacturer's documentation.

Application Scenarios & Design Considerations

SMBus Level 2 Battery Charger with Remote Sense

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