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MAX1779EUE+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1779EUE+T

Manufacturer: MAXIM, MAX

Low-Power Triple-Output TFT LCD DC-DC Converter

Partnumber Manufacturer Quantity Availability
MAX1779EUE+T,MAX1779EUET MAXIM, MAX 68631 In Stock

Description and Introduction

Low-Power Triple-Output TFT LCD DC-DC Converter The MAX1779EUE+T is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 1.8V to 5.5V  
- **Output Voltage Range:** Adjustable from 2.5V to 5.5V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-TSSOP (Exposed Pad)  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The MAX1779EUE+T is a synchronous step-up DC-DC converter optimized for low-input-voltage applications. It integrates a high-efficiency switching regulator with synchronous rectification, reducing the need for external Schottky diodes. The device is designed for battery-powered systems, portable electronics, and other applications requiring compact power solutions.  

### **Features:**  
- **Synchronous Rectification:** Improves efficiency and eliminates external diodes.  
- **Low Quiescent Current:** 35µA (typical) for improved battery life.  
- **Soft-Start Function:** Prevents inrush current during startup.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Overcurrent Protection:** Safeguards against output shorts.  
- **Thermal Shutdown:** Prevents damage from excessive heat.  
- **Small Footprint:** 16-pin TSSOP package with exposed pad for thermal management.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Low-Power Triple-Output TFT LCD DC-DC Converter

Alternative Part Number

  • TPS65130RGER --: Dual-output boost/inverting DC-DC converter in a similar small package, functionally comparable to the MAX1779 for LCD bias supply applications.
  • LT3580EMS8E#PBF --: Versatile boost/inverting converter with integrated switch, suitable as a functional substitute where the MAX1779 dual-output topology is needed.
  • MC34063ADR2G --: Widely available general-purpose DC-DC switching regulator that can implement boost and inverting topologies, useful as a low-cost fallback alternative.

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