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MAX8857AETL+T from MAX,MAXIM - Dallas Semiconductor

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MAX8857AETL+T

Manufacturer: MAX

Smallest, All-Internal MOSFET, 7-Channel 2 AA DSC PMIC

Partnumber Manufacturer Quantity Availability
MAX8857AETL+T,MAX8857AETLT MAX 2400 In Stock

Description and Introduction

Smallest, All-Internal MOSFET, 7-Channel 2 AA DSC PMIC The MAX8857AETL+T is a step-down DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.6V to VIN  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 40-Pin TQFN (6mm x 6mm)  

### **Description:**  
The MAX8857AETL+T is a high-efficiency, synchronous step-down DC-DC converter designed for applications requiring high current in a compact footprint. It integrates power MOSFETs and provides a fixed-frequency PWM control scheme for stable operation.  

### **Features:**  
- **High Efficiency:** Up to 95% with integrated synchronous rectification.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Low Dropout Operation:** Allows output voltage close to input voltage.  
- **Power-Good Output:** Monitors output voltage status.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Overtemperature Protection:** Enhances system reliability.  
- **Small Form Factor:** 40-pin TQFN package with exposed pad for thermal dissipation.  

This device is commonly used in portable electronics, networking equipment, and industrial applications.

Application Scenarios & Design Considerations

Smallest, All-Internal MOSFET, 7-Channel 2 AA DSC PMIC

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