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MAX1673ESA-T from MAX,MAXIM - Dallas Semiconductor

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MAX1673ESA-T

Manufacturer: MAX, MAXIM

Regulated, 125mA Output, Charge Pump DC-DC Inverter

Partnumber Manufacturer Quantity Availability
MAX1673ESA-T,MAX1673ESAT MAX, MAXIM 2082 In Stock

Description and Introduction

Regulated, 125mA Output, Charge Pump DC-DC Inverter The MAX1673ESA-T is a step-up DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** 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 SOIC (ESA)  

### **Descriptions:**  
The MAX1673ESA-T is a high-efficiency, low-power, step-up DC-DC converter designed for battery-powered applications. It is optimized for low input voltages, making it suitable for single-cell or dual-cell battery systems. The device includes an internal N-channel MOSFET switch and requires minimal external components.  

### **Features:**  
- **Low Start-Up Voltage:** Operates down to 0.7V  
- **Adjustable/Fixed Output Voltage Options**  
- **Low Quiescent Current:** 16µA (typical)  
- **Internal Soft-Start**  
- **Undervoltage Lockout (UVLO)**  
- **Small Footprint with Few External Components**  
- **Thermal Shutdown Protection**  

This device is commonly used in portable electronics, such as PDAs, digital cameras, and handheld instruments.  

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Application Scenarios & Design Considerations

Regulated, 125mA Output, Charge Pump DC-DC Inverter

Alternative Part Number

  • LT1054CS8#PBF --: Pin-compatible switched-capacitor voltage converter in SO-8 with similar inverting/regulating function, widely available and well documented.
  • ICL7660ACPA --: Classic charge-pump voltage inverter offering comparable negative supply generation, though package and current rating differ slightly.
  • LM2662MX/NOPB --: Switched-capacitor voltage converter with adjustable frequency and low quiescent current, suitable as a functional substitute in many designs.
  • ICL7660ACBAZA --: Classic CMOS switched-capacitor voltage converter in SOIC-8, widely available and inexpensive; suitable for inverting supply applications with lower current demand than the MAX1673.
  • TC7662BEOA --: Switched-capacitor voltage converter in an 8-pin SOIC package offering higher output current than the ICL7660 family, making it a practical drop-in style substitute for many MAX1673 designs.

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