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MAX8731AETI from MAXIM,MAXIM - Dallas Semiconductor

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MAX8731AETI

Manufacturer: MAXIM, MAX

SMBus Level 2 Battery Charger with Remote Sense

Partnumber Manufacturer Quantity Availability
MAX8731AETI MAXIM, MAX 3521 In Stock

Description and Introduction

SMBus Level 2 Battery Charger with Remote Sense The MAX8731AETI is a power management IC (PMIC) manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual details about this component:

### **Manufacturer:**  
Maxim Integrated (Analog Devices)  

### **Part Number:**  
MAX8731AETI  

### **Package:**  
28-pin TQFN (Thin Quad Flat No-Lead)  

### **Description:**  
The MAX8731AETI is a highly integrated power-management solution designed for notebook computers and other portable devices. It combines a step-down controller, a step-up controller, and multiple linear regulators to provide efficient power conversion and management.  

### **Key Features:**  
1. **Dual-Output Step-Down Controller:**  
   - Supports two synchronous buck regulators for core and I/O voltage rails.  
   - Adjustable output voltages.  
   - High efficiency with integrated MOSFET drivers.  

2. **Step-Up Controller:**  
   - Boost converter for generating higher voltages (e.g., LCD bias or peripheral power).  
   - Supports external N-channel MOSFETs.  

3. **Multiple Linear Regulators (LDOs):**  
   - Includes several low-dropout linear regulators for auxiliary power rails.  
   - Fixed or adjustable output options.  

4. **Power Sequencing & Control:**  
   - Programmable power-up/down sequencing.  
   - Power-good outputs for monitoring.  

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

6. **Input Voltage Range:**  
   - Typically operates from a 4.5V to 28V input range.  

7. **Applications:**  
   - Notebook computers.  
   - Portable devices.  
   - Embedded systems.  

For exact specifications, refer to the official datasheet from Maxim Integrated/Analog Devices.

Application Scenarios & Design Considerations

SMBus Level 2 Battery Charger with Remote Sense

Alternative Part Number

  • BQ24725ARGRR --: SMBus-controlled multi-chemistry battery charger controller with similar function and pin-compatible feature set, widely available and well documented.
  • ISL88731CHRTZ --: SMBus battery charger controller for notebook applications, comparable input voltage range and charge control architecture.
  • LTC4162IUFD --: Advanced multi-chemistry buck battery charger with SMBus/I2C control, suitable as a functional replacement with similar charging capabilities.
  • BQ24735RGRR --: Multi-cell synchronous buck battery charger with SMBus interface, offering similar charging control functionality and a different naming series for easy distinction.

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