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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 MAXIM 1257 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. Below are its key specifications, descriptions, and features:

### **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 (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin TDFN (3mm x 3mm)  

### **Descriptions:**  
The MAX1946ETA is a synchronous, step-down DC-DC converter optimized for high efficiency and compact power solutions in portable applications. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 1MHz switching frequency, allowing the use of small inductors and capacitors.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Low Quiescent Current:** 30µA (typical) in shutdown mode.  
- **Internal Synchronous Rectifier:** Eliminates the need for an external Schottky diode.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Ensures safe operation under fault conditions.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Small Footprint:** 8-pin TDFN package (3mm x 3mm) for space-constrained applications.  

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

Application Scenarios & Design Considerations

Single USB Switch with Autoreset and Fault Blanking in Tiny TDFN

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