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MAX1772EEI+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1772EEI+T

Manufacturer: MAXIM

Low-Cost, Multichemistry Battery-Charger Building Block

Partnumber Manufacturer Quantity Availability
MAX1772EEI+T MAXIM 1071 In Stock

Description and Introduction

Low-Cost, Multichemistry Battery-Charger Building Block The MAX1772EEI+T is a DC-DC controller manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 30V  
- **Switching Frequency:** 300kHz (fixed)  
- **Output Current:** Up to 2A (depending on external components)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  

### **Descriptions:**  
The MAX1772EEI+T is a high-efficiency, step-down (buck) DC-DC controller designed for applications requiring high input voltages and adjustable output voltages. It integrates a PWM controller with external MOSFET drivers, enabling flexible power supply designs.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4V to 30V input.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **External MOSFET Drivers:** Allows use of external N-channel MOSFETs for higher current handling.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overcurrent Protection:** Includes cycle-by-cycle current limiting.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Low Dropout Operation:** Maintains regulation even when input voltage approaches output voltage.  

This device is commonly used in industrial, automotive, and telecom power supply applications.

Application Scenarios & Design Considerations

Low-Cost, Multichemistry Battery-Charger Building Block

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