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MAX640ESA+T from MAX,MAXIM - Dallas Semiconductor

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MAX640ESA+T

Manufacturer: MAX

5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters

Partnumber Manufacturer Quantity Availability
MAX640ESA+T,MAX640ESAT MAX 1415 In Stock

Description and Introduction

5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters The MAX640ESA+T is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:**  
Maxim Integrated  

### **Part Number:**  
MAX640ESA+T  

### **Description:**  
The MAX640ESA+T is a precision voltage monitor designed to supervise power supplies in microprocessor (μP) and digital systems. It ensures proper system operation by monitoring the voltage level and providing a reset signal when the voltage falls below a predefined threshold.  

### **Key Features:**  
1. **Precision Voltage Monitoring:**  
   - Monitors 5V, 3.3V, or 3V power supplies with tight tolerance (±1.5%).  

2. **Adjustable or Fixed Threshold Options:**  
   - Fixed threshold options available (e.g., 5V, 3.3V, 3V).  
   - Adjustable threshold via external resistors (for custom applications).  

3. **Manual Reset Input:**  
   - Allows for external push-button reset functionality.  

4. **Reset Output:**  
   - Active-low reset output (RESET) for system initialization.  
   - Guaranteed reset assertion down to 1V supply voltage.  

5. **Low Quiescent Current:**  
   - Typically consumes 10μA, making it suitable for battery-powered applications.  

6. **Power-Fail Comparator:**  
   - Optional power-fail warning feature for early system shutdown.  

7. **Temperature Range:**  
   - Operates over the industrial temperature range (-40°C to +85°C).  

8. **Package:**  
   - 8-pin SOIC (Small Outline Integrated Circuit) package.  

### **Applications:**  
- Microprocessor and microcontroller power monitoring.  
- Embedded systems requiring reliable power supervision.  
- Industrial control systems.  
- Battery-powered devices.  

### **Additional Notes:**  
- The "+T" suffix indicates tape-and-reel packaging for automated assembly.  
- The MAX640ESA+T is a lead-free and RoHS-compliant component.  

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

Application Scenarios & Design Considerations

5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters

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