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MAX1684EEE+ from MAX,MAXIM - Dallas Semiconductor

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MAX1684EEE+

Manufacturer: MAX, MAXIN, MAXIM

Low-Noise, 14V Input, 1A, PWM Step-Down Converters

Partnumber Manufacturer Quantity Availability
MAX1684EEE+,MAX1684EEE MAX, MAXIN, MAXIM 344 In Stock

Description and Introduction

Low-Noise, 14V Input, 1A, PWM Step-Down Converters The **MAX1684EEE+** is a high-efficiency, step-down DC-DC converter manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Input Voltage Range:** 4V to 28V  
- **Output Voltage Range:** Adjustable from 1.25V to 26V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 100kHz (fixed)  
- **Efficiency:** Up to 96%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-QSOP (Exposed Pad)  

### **Descriptions:**  
The MAX1684EEE+ is a **PWM step-down (buck) DC-DC converter** designed for high-efficiency power conversion in applications requiring a regulated output voltage. It integrates a **N-channel MOSFET switch** and supports both **fixed and adjustable output voltages** via an external resistor divider.  

### **Features:**  
- **Low Dropout Operation:** Maintains regulation even when the input voltage is close to the output.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Current-Limit Protection:** Prevents damage from excessive load current.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Low Quiescent Current:** Typically 1.5mA (improves light-load efficiency).  
- **Adjustable Output Voltage:** Configurable via external resistors.  

This device is commonly used in **automotive, industrial, and battery-powered systems** where efficient step-down voltage conversion is required.  

*(Note: Always refer to the official datasheet for detailed electrical characteristics and application guidelines.)*

Application Scenarios & Design Considerations

Low-Noise, 14V Input, 1A, PWM Step-Down Converters

Alternative Part Number

  • LTC3406ES5#TRPBF --: High-efficiency synchronous step-down converter in a small package, suitable as a functional replacement for the MAX1684 boost converter in many low-power designs.
  • TPS61020DRCR --: Boost converter with integrated switch and similar input/output voltage range, offering a comparable solution for portable power applications.
  • NCP1402SN33T1G --: Compact boost converter IC with fixed 3.3V output, providing a cost-effective alternative for low-current step-up regulation.
  • TPS62130RGTR --: Step-down DC-DC converter in a small QFN package with comparable input voltage range and output current, widely available and cost-effective substitute for the MAX1684 buck regulator.
  • AP3211KTR-G1 --: 1.5A step-down converter with wide input range and simple external component count, offering a low-cost alternative for the MAX1684 in similar power supply designs.
  • TPS62040DRCR --: 1.2A synchronous buck converter with integrated switches, comparable input range and output capability, available in a small QFN package.

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