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MAX8840ELT27+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX8840ELT27+

Manufacturer: MAXIM

Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN

Partnumber Manufacturer Quantity Availability
MAX8840ELT27+ MAXIM 1000 In Stock

Description and Introduction

Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN The MAX8840ELT27+ is a linear battery charger IC manufactured by **MAXIM Integrated** (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 5.5V  
- **Charge Voltage:** 4.2V (adjustable)  
- **Charge Current:** Up to 500mA (programmable)  
- **Battery Type:** Single-cell Li-ion or Li-polymer  
- **Package:** 6-pin TDFN (2mm x 2mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Charge Termination:** Automatic (based on charge current threshold)  
- **Protection Features:** Thermal shutdown, reverse current blocking, input overvoltage protection  

### **Features:**  
- **USB-Compliant Charging:** Supports 100mA and 500mA USB charging modes  
- **Programmable Charge Current:** Adjustable via external resistor  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits  
- **Low Dropout Voltage:** Ensures efficient charging even with lower input voltages  
- **No External MOSFET Required:** Integrated power FET simplifies design  
- **Status Indication:** Open-drain output for charge status monitoring  

This charger is designed for portable devices requiring compact and efficient battery charging solutions.

Application Scenarios & Design Considerations

Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN

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