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MAX1873TEEE

Manufacturer: MAX, MAXI, MAXIM

Simple Current-Limited Switch-Mode Li Charger Controller

Partnumber Manufacturer Quantity Availability
MAX1873TEEE MAX, MAXI, MAXIM 4015 In Stock

Description and Introduction

Simple Current-Limited Switch-Mode Li Charger Controller The MAX1873TEEE is a step-up DC-DC converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on the available knowledge base:

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 1.8V to 5.5V  
- **Output Current:** Up to 300mA (depending on input/output conditions)  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin TQFN (5mm x 5mm)  

### **Descriptions:**  
The MAX1873TEEE is a high-efficiency, low-voltage, step-up DC-DC converter designed for battery-powered applications. It integrates a synchronous rectifier to improve efficiency and minimize external component count. The device is optimized for low input voltages, making it suitable for single-cell or dual-cell alkaline/NiMH battery applications.  

### **Features:**  
- **True Low-Voltage Operation:** Starts up with inputs as low as 0.7V.  
- **Synchronous Rectification:** Enhances efficiency compared to diode-based designs.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Low Quiescent Current:** 30µA (typical) in shutdown mode.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Ensures safe operation.  
- **Small Footprint:** 16-pin TQFN package for space-constrained applications.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Simple Current-Limited Switch-Mode Li Charger Controller

Alternative Part Number

  • BQ24725ARGRR --: Multi-chemistry battery charge controller with similar SMBus-controlled charging architecture, widely used as a drop-in alternative in charger designs.
  • ISL6251AHRZ --: Notebook battery charger controller offering comparable charge-voltage/current regulation and system power path management.
  • LTC4162IUFD --: Advanced buck battery charger with I2C control and similar multi-chemistry charging capability for portable applications.
  • BQ24707ARGRR --: Multi-chemistry battery charger controller with similar SMBus-controlled charging functionality, widely available and well documented.
  • LT3652EDD#PBF --: Monolithic step-down battery charger IC with programmable charge current and voltage, suitable as a functional substitute in similar charging designs.
  • BQ24707RGER --: Multi-chemistry battery charger controller with similar SMBus-controlled charging function, widely available and well documented as a MAX1873 replacement in charger designs.

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