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MAX1846EUB from MAXIM,MAXIM - Dallas Semiconductor

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MAX1846EUB

Manufacturer: MAXIM

High-Efficiency / Current-Mode / Inverting PWM Controller

Partnumber Manufacturer Quantity Availability
MAX1846EUB MAXIM 2157 In Stock

Description and Introduction

High-Efficiency / Current-Mode / Inverting PWM Controller The MAX1846EUB is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Package:** 10-pin µMAX (3mm x 5mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Descriptions:**
The MAX1846EUB is a high-efficiency, step-down DC-DC converter designed for low-power applications. It integrates a synchronous rectifier for improved efficiency and operates at a fixed 1MHz switching frequency, allowing the use of small external components. The device is optimized for battery-powered systems, portable devices, and other space-constrained applications.

### **Features:**
- **High Efficiency:** Up to 95% due to synchronous rectification.  
- **Low Quiescent Current:** 30µA (typical) for extended battery life.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Pulse-Width Modulation (PWM) Operation:** Ensures stable performance under varying loads.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Enhances reliability.  
- **Small Footprint:** 10-pin µMAX package saves board space.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

High-Efficiency / Current-Mode / Inverting PWM Controller

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