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MAX1838EEE from MAX,MAXIM - Dallas Semiconductor

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MAX1838EEE

Manufacturer: MAX, MAXIM

Dual USB Switch with Fault Blanking and Autoreset

Partnumber Manufacturer Quantity Availability
MAX1838EEE MAX, MAXIM 4000 In Stock

Description and Introduction

Dual USB Switch with Fault Blanking and Autoreset The MAX1838EEE 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 Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 1.2A  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-QSOP (Quad Flat Small Outline Package)  

### **Descriptions:**  
The MAX1838EEE is a synchronous step-down DC-DC converter designed for high-efficiency power conversion in portable and battery-powered applications. It integrates both high-side and low-side MOSFETs, reducing external component count.  

### **Features:**  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **PWM/PFM Mode Operation:** Automatically switches between modes for optimal efficiency at light and heavy loads.  
- **Low Dropout Operation:** Allows 100% duty cycle for extended battery life.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Safeguards the device under fault conditions.  
- **Small Footprint:** Suitable for space-constrained applications.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual USB Switch with Fault Blanking and Autoreset

Alternative Part Number

  • TPS2051BDBVR --: Current-limited power distribution switch in SOT-23-5, functionally similar to the MAX1838 adjustable current-limit switch and widely available.
  • MIC2026-1YM --: Dual-channel current-limited power switch in SOIC-8, comparable current-limit and enable features for USB/power-rail protection.
  • AP2553W6-7 --: Single-channel adjustable current-limited power switch in SOT-26, suitable as a compact substitute for load-switch applications.

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