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MAX1775EEE from MAX,MAXIM - Dallas Semiconductor

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MAX1775EEE

Manufacturer: MAX, MAXIM

Dual-Output Step-Down DC-DC Converter for PDA/Palmtop Computers

Partnumber Manufacturer Quantity Availability
MAX1775EEE MAX, MAXIM 543 In Stock

Description and Introduction

Dual-Output Step-Down DC-DC Converter for PDA/Palmtop Computers The MAX1775EEE is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated. Below are the key specifications, descriptions, and features based on the available knowledge:

### **Specifications:**
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 2V to 5.5V  
- **Output Current:** Up to 1A (depending on input voltage and output settings)  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-QSOP (Quad Flat Small Outline Package)  

### **Descriptions:**
The MAX1775EEE is a synchronous step-up DC-DC converter designed for low-input-voltage applications, such as single-cell or dual-cell battery-powered devices. It integrates synchronous rectification to improve efficiency and reduce external component count. The device is optimized for portable electronics, providing stable power conversion with minimal external components.

### **Features:**
- **Wide Input Voltage Range:** Supports operation from very low voltages (0.7V) up to 5.5V.  
- **High Efficiency:** Up to 95% due to synchronous rectification.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **Low Quiescent Current:** Typically 50µA, enhancing battery life.  
- **Internal Soft-Start:** Prevents inrush current at startup.  
- **Overcurrent Protection:** Safeguards against excessive load conditions.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Small Footprint:** 16-QSOP package for space-constrained applications.  

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

Application Scenarios & Design Considerations

Dual-Output Step-Down DC-DC Converter for PDA/Palmtop Computers

Alternative Part Number

  • TPS61170DRVR --: Boost converter in a small WSON package with comparable input voltage range and current capability; a common cross for MAX1775 boost applications.
  • LT1932ES6 --: Constant-current boost LED driver with similar topology and compact SOT-23 package, suitable as a functional substitute in many MAX1775 circuits.
  • AP3012KTR-G1 --: Low-cost boost converter with wide input range and small package, offering a practical drop-in style alternative when exact MAX1775 features are not required.
  • TPS61130PW --: Boost converter with integrated switch and similar input voltage range; pin-compatible function in many designs and widely available.
  • LT1935ES5 --: High-efficiency boost DC-DC converter in a small package, suitable replacement for step-up regulation with comparable current capability.
  • MC34063ACD --: Versatile general-purpose switching regulator that can be configured as a boost converter; low cost and broad availability for non-critical designs.

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