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MAX1674EUA from MAX,MAXIM - Dallas Semiconductor

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MAX1674EUA

Manufacturer: MAX, MAXIM, MAXIM

High-Efficiency / Low-Supply-Current / Compact / Step-Up DC-DC Converters

Partnumber Manufacturer Quantity Availability
MAX1674EUA MAX, MAXIM, MAXIM 339 In Stock

Description and Introduction

High-Efficiency / Low-Supply-Current / Compact / Step-Up DC-DC Converters The MAX1674EUA is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 2V to 5.5V (fixed 3.3V or 5V versions available)  
- **Output Current:** Up to 150mA (for 3.3V output from a single AA cell)  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 94%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin µMAX (MSOP)  

### **Descriptions:**
- The MAX1674EUA is a low-power, step-up DC-DC converter designed for battery-powered applications.  
- It includes an internal 0.5A power switch and operates with very low input voltages, making it suitable for single-cell or dual-cell battery systems.  
- The device features a pulse-width modulation (PWM) control scheme for high efficiency across a wide load range.  

### **Features:**
- **Low Start-Up Voltage:** Operates down to 0.7V input.  
- **Adjustable/Fixed Output:** Supports adjustable output via external resistors or fixed 3.3V/5V versions.  
- **Low Quiescent Current:** 16µA (typical) in shutdown mode, 50µA (typical) in no-load operation.  
- **Internal Power MOSFET:** Eliminates the need for an external switch.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  

For detailed electrical characteristics and application circuits, refer to the official Maxim Integrated datasheet.

Application Scenarios & Design Considerations

High-Efficiency / Low-Supply-Current / Compact / Step-Up DC-DC Converters

Alternative Part Number

  • LT1308BCS8 --: Step-up DC-DC converter in an 8-pin SOIC package with comparable input voltage range and switching current, suitable as a functional replacement for boost regulator designs.
  • TPS61020DRB --: High-efficiency synchronous boost converter in a small DFN package, offering similar input voltage range and output current capability for portable applications.
  • MC34063ADR2G --: Widely available general-purpose DC-DC switching regulator that can be configured as a boost converter, providing a low-cost alternative when exact specifications are less critical.
  • TPS61020DRCR --: Boost converter with integrated switch in a similar small package, widely available and pin-function compatible for many step-up designs.
  • LT1302CS8 --: Low-voltage step-up DC-DC converter with comparable input range and current capability, a common drop-in style alternative.
  • MC34063AP1 --: Versatile general-purpose switching regulator that can be configured as a boost converter, low cost and broadly stocked.
  • MC34063A --: General-purpose boost/buck/inverting switching regulator usable as a functional substitute with external component adjustment, very low cost and broad availability.

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