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MAX1946ETA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1946ETA+

Manufacturer: MAXIM

Single USB Switch with Autoreset and Fault Blanking in Tiny TDFN

Partnumber Manufacturer Quantity Availability
MAX1946ETA+,MAX1946ETA MAXIM 1 In Stock

Description and Introduction

Single USB Switch with Autoreset and Fault Blanking in Tiny TDFN The MAX1946ETA+ is a high-efficiency, step-down DC-DC converter manufactured by **MAXIM Integrated** (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin TDFN (3mm x 3mm)  
- **Features:**  
  - Low quiescent current (30µA typical)  
  - Pulse-width modulation (PWM) mode for low noise  
  - Internal synchronous rectifier for high efficiency  
  - Soft-start for controlled startup  
  - Overcurrent and thermal protection  

### **Descriptions:**  
The MAX1946ETA+ is a synchronous buck converter optimized for portable applications requiring high efficiency and compact size. It integrates low RDS(ON) MOSFETs to minimize power loss and supports a wide input voltage range, making it suitable for battery-powered devices.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Low Dropout Operation:** Maintains regulation even when VIN is close to VOUT.  
- **Small Footprint:** 8-pin TDFN package saves board space.  
- **Low Noise Operation:** Fixed-frequency PWM reduces EMI.  
- **Protection Features:** Includes overcurrent and thermal shutdown.  

This device is commonly used in portable electronics, such as smartphones, tablets, and handheld instruments.  

(Source: MAXIM Integrated Datasheet)

Application Scenarios & Design Considerations

Single USB Switch with Autoreset and Fault Blanking in Tiny TDFN

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