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MAX640ESA-T from MAXIM,MAXIM - Dallas Semiconductor

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MAX640ESA-T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX640ESA-T,MAX640ESAT MAXIM 1 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 key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Series:** MAX640  
- **Package:** 8-SOIC (150mil)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** 1.2V to 5.5V  
- **Reset Threshold Voltage Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** 140ms (min)  
- **Quiescent Current:** 5μA (typical)  
- **Output Type:** Active-low RESET (open-drain)  

### **Descriptions:**
- The MAX640ESA-T is a low-power μP voltage monitor designed to ensure proper system operation during power-up, power-down, and brownout conditions.  
- It provides a reset signal to the microprocessor when the supply voltage drops below a preset threshold.  
- The device features an adjustable or fixed reset threshold, making it suitable for various applications.  

### **Features:**
- **Low Quiescent Current:** Consumes only 5μA (typical), ideal for battery-powered systems.  
- **Adjustable or Fixed Threshold:** Supports both factory-set and user-adjustable reset thresholds.  
- **Open-Drain RESET Output:** Compatible with multiple logic levels.  
- **Wide Operating Voltage Range:** Operates from 1.2V to 5.5V.  
- **Manual Reset Input:** Allows external reset control.  
- **Power-Fail Comparator:** Provides early warning of power loss.  
- **Small Form Factor:** Available in an 8-pin SOIC package.  

This information is based solely 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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