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MAX8643AETG+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX8643AETG+T

Manufacturer: MAXIM

3A, 2MHz Step-Down Regulator with Integrated Switches

Partnumber Manufacturer Quantity Availability
MAX8643AETG+T,MAX8643AETGT MAXIM 3531 In Stock

Description and Introduction

3A, 2MHz Step-Down Regulator with Integrated Switches The **MAX8643AETG+T** is a DC-DC converter manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Category:** Power Management IC  
- **Type:** Step-Down (Buck) DC-DC Converter  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable (0.6V to VIN)  
- **Output Current:** Up to **1.2A**  
- **Switching Frequency:** **1MHz** (fixed)  
- **Efficiency:** Up to **95%**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **24-TQFN (4x4mm)**  
- **Features:**  
  - **PWM/PFM Mode Operation**  
  - **Internal Synchronous Rectifier**  
  - **Soft-Start Function**  
  - **Overcurrent & Thermal Protection**  
  - **Low Dropout Operation**  

### **Description:**  
The **MAX8643AETG+T** is a high-efficiency, step-down DC-DC converter designed for portable and battery-powered applications. It integrates synchronous rectification for improved efficiency and supports both **PWM (Pulse-Width Modulation)** and **PFM (Pulse-Frequency Modulation)** modes for optimal performance across load conditions.  

### **Features:**  
- **High Efficiency (up to 95%)**  
- **1.2A Output Current Capability**  
- **Wide Input Voltage Range (2.5V to 5.5V)**  
- **Adjustable Output Voltage (0.6V to VIN)**  
- **1MHz Fixed Switching Frequency**  
- **Internal Synchronous Rectifier (No External Schottky Diode Needed)**  
- **Low Dropout Operation**  
- **Soft-Start for Controlled Power-Up**  
- **Overcurrent & Thermal Shutdown Protection**  
- **Compact 24-TQFN Package (4x4mm)**  

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

Application Scenarios & Design Considerations

3A, 2MHz Step-Down Regulator with Integrated Switches

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