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MAX649CSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX649CSA

Manufacturer: MAXIM

5V/3.3V/3V or Adjustable, High-Efficiency,

Partnumber Manufacturer Quantity Availability
MAX649CSA MAXIM 156 In Stock

Description and Introduction

5V/3.3V/3V or Adjustable, High-Efficiency, The MAX649CSA is a high-voltage protection IC manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX649CSA  
- **Package:** 8-pin SOIC  
- **Operating Voltage Range:** Up to 72V  
- **Quiescent Current:** 40µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Current:** Adjustable via external components  
- **Protection Features:** Overvoltage, undervoltage, reverse-voltage, and overcurrent protection  

### **Description:**  
The MAX649CSA is a high-voltage protection IC designed to safeguard sensitive electronics from voltage transients, reverse polarity, and overcurrent conditions. It is commonly used in automotive, industrial, and telecom applications where robust protection is required.

### **Features:**  
- **Wide Input Voltage Range:** Supports operation up to 72V  
- **Low Quiescent Current:** 40µA (typical) for power efficiency  
- **Adjustable Overvoltage and Undervoltage Thresholds:** Configurable via external resistors  
- **Reverse-Voltage Protection:** Prevents damage from reverse-polarity connections  
- **Overcurrent Protection:** Limits current to protect downstream components  
- **Small Footprint:** 8-pin SOIC package for space-constrained designs  

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

Application Scenarios & Design Considerations

5V/3.3V/3V or Adjustable, High-Efficiency,

Alternative Part Number

  • LTC1265CS8 --: Pin-compatible CMOS step-down switching regulator in the same SO-8 class, widely used as a MAX649 substitute with similar input voltage range and current capability.
  • MC34063ACD --: Industry-standard general-purpose DC-DC switching regulator that can be configured to match the MAX649 buck function; very common and cost-effective drop-in style alternative.
  • LM2575S-5 --: Simple 1A step-down regulator with integrated switch, offering comparable functionality and easy availability as a replacement for the MAX649 in many designs.

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