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MAX1898EUB42+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1898EUB42+T

Manufacturer: MAXIM

Linear Charger for Single-Cell Li+ Battery

Partnumber Manufacturer Quantity Availability
MAX1898EUB42+T MAXIM 530 In Stock

Description and Introduction

Linear Charger for Single-Cell Li+ Battery The MAX1898EUB42+T is a step-down DC-DC converter manufactured by Maxim Integrated. Below are the factual details from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1898EUB42+T  
- **Type:** Step-Down (Buck) DC-DC Converter  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage:** 4.2V (Fixed)  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 500kHz (Typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin µMAX (3mm x 5mm)  

### **Descriptions:**
- The MAX1898EUB42+T is a high-efficiency, step-down DC-DC converter designed for battery-powered and low-power applications.  
- It integrates a synchronous rectifier to improve efficiency and reduce external component count.  
- The device features a fixed 4.2V output, making it suitable for applications requiring regulated power from higher input voltages.  

### **Features:**
- **Wide Input Voltage Range (4.5V to 28V)**  
- **500mA Output Current Capability**  
- **High Efficiency (Up to 95%)**  
- **Internal Synchronous Rectifier**  
- **Fixed 4.2V Output Voltage**  
- **500kHz Switching Frequency**  
- **Low Quiescent Current (50µA in Shutdown Mode)**  
- **Thermal Shutdown Protection**  
- **Short-Circuit Protection**  

This information is based solely on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

Linear Charger for Single-Cell Li+ Battery

Alternative Part Number

  • BQ24074RGTR --: Single-cell Li-ion linear charger with similar charge management features and programmable current, a common cross-vendor substitute for the MAX1898 family.
  • LTC4054ES5-4.2#PBF --: Compact standalone Li-ion linear charger for 4.2V cells with constant-current/constant-voltage operation, functionally comparable to the MAX1898.
  • TP4056 --: Low-cost single-cell Li-ion linear charger IC widely used as a drop-in functional alternative for 4.2V charging applications.

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