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MAX1745EUB+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1745EUB+

Manufacturer: MAXIM

High-Voltage, Step-Down DC-DC Controller in µMAX

Partnumber Manufacturer Quantity Availability
MAX1745EUB+,MAX1745EUB MAXIM 15000 In Stock

Description and Introduction

High-Voltage, Step-Down DC-DC Controller in µMAX The MAX1745EUB+ is a high-efficiency, step-down DC-DC converter manufactured by **MAXIM** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** MAXIM (now Analog Devices)  
- **Part Number:** MAX1745EUB+  
- **Package:** 10-pin µMAX (MicroMAX)  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable (0.8V to VIN)  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features:** Synchronous rectification, low dropout operation, and pulse-width modulation (PWM) mode  

### **Descriptions:**  
The MAX1745EUB+ is a synchronous step-down DC-DC converter optimized for high efficiency and compact designs. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 1MHz switching frequency, enabling the use of small inductors and capacitors.  

### **Features:**  
- **High Efficiency (up to 95%)** – Minimizes power loss.  
- **Synchronous Rectification** – Improves efficiency by reducing conduction losses.  
- **Low Dropout Operation** – Allows the output to remain regulated even when the input voltage approaches the output voltage.  
- **Adjustable Output Voltage (0.8V to VIN)** – Set via an external resistor divider.  
- **1MHz Fixed Switching Frequency** – Reduces PCB footprint with small passive components.  
- **Internal Soft-Start** – Prevents inrush current at startup.  
- **Overcurrent and Thermal Protection** – Enhances reliability.  

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

Application Scenarios & Design Considerations

High-Voltage, Step-Down DC-DC Controller in µMAX

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