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MAX1688ESA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1688ESA+

Manufacturer: MAXIM

Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM

Partnumber Manufacturer Quantity Availability
MAX1688ESA+,MAX1688ESA MAXIM 589 In Stock

Description and Introduction

Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM The **MAX1688ESA+** 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:

### **Specifications:**  
- **Input Voltage Range:** 4V to 28V  
- **Output Voltage Range:** Adjustable from 1.25V to 26V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 100kHz to 300kHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  

### **Descriptions:**  
- The MAX1688ESA+ is a **current-mode PWM (Pulse-Width Modulation) controller** designed for step-down (buck) DC-DC conversion.  
- It integrates a **high-side N-channel MOSFET driver**, reducing external component count.  
- Suitable for **battery-powered applications, industrial systems, and automotive electronics** due to its wide input voltage range.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors.  
- **Soft-Start Function** to limit inrush current.  
- **Current-Limit Protection** for overcurrent conditions.  
- **Low Dropout Operation** for extended battery life.  
- **Thermal Shutdown** to prevent overheating.  
- **External Synchronization Capability** for noise-sensitive applications.  

This IC is commonly used in **power supplies, LED drivers, and portable devices** requiring efficient voltage regulation.  

*(Source: MAXIM Integrated Datasheet)*

Application Scenarios & Design Considerations

Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM

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