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MAX1823EUB from MAXIM,MAXIM - Dallas Semiconductor

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MAX1823EUB

Manufacturer: MAXIM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX1823EUB MAXIM, MAX 840 In Stock

Description and Introduction

4 V to 5.5 V, dual USB switch with fault blanking and autoreset The MAX1823EUB is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1823EUB  
- **Package:** 10-pin µMAX® (UB package)  
- **Input Voltage Range:** 2.6V 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  
- **Features:** Synchronous rectification, low dropout operation, and pulse-width modulation (PWM) mode.  

### **Descriptions:**  
The MAX1823EUB is a high-efficiency, step-down DC-DC converter optimized for battery-powered applications. It integrates synchronous rectification to minimize external components and improve efficiency. The device operates at a fixed 1MHz switching frequency, allowing for compact designs with small inductors and capacitors.  

### **Features:**  
- **High Efficiency (up to 95%)** – Reduces power loss in portable devices.  
- **Low Dropout Operation** – Maintains regulation even when input voltage approaches output voltage.  
- **Synchronous Rectification** – Eliminates the need for an external Schottky diode.  
- **1MHz Fixed Switching Frequency** – Enables small external components.  
- **Adjustable Output Voltage (0.8V to VIN)** – Provides flexibility for various applications.  
- **Low Quiescent Current (30µA typ.)** – Extends battery life in standby mode.  
- **Thermal Shutdown & Short-Circuit Protection** – Enhances device reliability.  
- **Soft-Start Function** – Reduces inrush current during startup.  

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

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 switch in SOT-23-5 with similar voltage/current ratings, pin-compatible function and widely available.
  • MIC2026-1YM --: Dual-channel current-limited power distribution switch in SOIC-8, comparable current limit and enable control features.
  • AP2191SG-13 --: Single-channel current-limited power switch in SOIC-8 with similar operating voltage range and overcurrent protection.
  • TPS2051BDBVR --: Current-limited USB power switch with similar functionality and pin-compatible footprint, widely available and cost-effective.

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