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MAX1793 from MAXIM,MAXIM - Dallas Semiconductor

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MAX1793

Manufacturer: MAXIM

Low-Dropout, Low-I

Partnumber Manufacturer Quantity Availability
MAX1793 MAXIM 69 In Stock

Description and Introduction

Low-Dropout, Low-I The MAX1793 is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 1.25V to 5.5V  
- **Output Current:** Up to 300mA (depending on input/output conditions)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 95%  
- **Quiescent Current:** 30µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** 6-pin SOT23, 8-pin µMAX  

### **Descriptions:**
The MAX1793 is a low-power, step-up DC-DC converter designed for battery-powered applications. It features an internal 0.3A switch and operates from input voltages as low as 0.7V, making it suitable for single-cell alkaline, NiMH, or NiCd battery systems. The device provides a regulated output voltage with high efficiency and low quiescent current, extending battery life in portable devices.

### **Features:**
- **Low Start-Up Voltage:** Operates down to 0.7V  
- **Adjustable Output Voltage:** Set via external resistors  
- **Internal Synchronous Rectifier:** Improves efficiency  
- **Pulse-Frequency Modulation (PFM) Mode:** Enhances light-load efficiency  
- **Soft-Start Function:** Reduces inrush current  
- **Overcurrent and Thermal Protection:** Ensures safe operation  
- **Small Footprint:** Available in compact SOT23 and µMAX packages  

The MAX1793 is commonly used in applications such as portable electronics, medical devices, and energy harvesting systems.

Application Scenarios & Design Considerations

Low-Dropout, Low-I

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