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MAX1921EUT15+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1921EUT15+T

Manufacturer: MAXIM

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23

Partnumber Manufacturer Quantity Availability
MAX1921EUT15+T MAXIM 3470 In Stock

Description and Introduction

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 The MAX1921EUT15+T is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage:** Fixed 1.5V  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1.2MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT23-6  

### **Descriptions:**
The MAX1921EUT15+T is a high-efficiency, step-down DC-DC converter designed for low-power applications. It integrates synchronous rectification for improved efficiency and operates at a fixed frequency of 1.2MHz, 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%)**  
- **Low Quiescent Current (35µA typical)**  
- **Internal Synchronous Rectification**  
- **Fixed-Frequency PWM Operation**  
- **Overcurrent and Thermal Shutdown Protection**  
- **Small Footprint (SOT23-6 Package)**  
- **No External Schottky Diode Required**  

This device is suitable for applications requiring a compact, efficient, and reliable step-down converter.

Application Scenarios & Design Considerations

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23

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