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MAX1823BEUB from MAXIM,MAXIM - Dallas Semiconductor

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MAX1823BEUB

Manufacturer: MAXIM, MAX

4 V to 5.5 V, dual USB switch with fault blanking and autoreset

Partnumber Manufacturer Quantity Availability
MAX1823BEUB MAXIM, MAX 9292 In Stock

Description and Introduction

4 V to 5.5 V, dual USB switch with fault blanking and autoreset The MAX1823BEUB is a high-efficiency, 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:** 2.6V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1.2MHz (typical)  
- **Efficiency:** Up to 95%  
- **Package:** 10-pin µMAX® (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The MAX1823BEUB is a synchronous step-down DC-DC converter optimized for high efficiency and compact size. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 1.2MHz switching frequency, allowing the use of small inductors and capacitors. It features pulse-width modulation (PWM) control for stable output under varying loads.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with integrated synchronous rectification.  
- **Low Dropout Operation:** Allows output voltage close to input voltage.  
- **Low Quiescent Current:** 40µA (typical) in operation.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Safeguards against fault conditions.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Small Footprint:** 10-pin µMAX package for space-constrained applications.  

For detailed application notes and schematics, refer to the official Maxim Integrated (Analog Devices) datasheet.

Application Scenarios & Design Considerations

4 V to 5.5 V, dual USB switch with fault blanking and autoreset

Alternative Part Number

  • TPS2041BDBVR --: Current-limited power distribution switch in SOT-23-5, functionally similar to the MAX1823 dual USB switch and widely available.
  • MIC2026-1YM --: Dual-channel USB power distribution switch with current limiting, close functional match in a small package.
  • AP2191SG-13 --: Single-channel current-limited power switch suitable as a lower-cost alternative for USB port protection.

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