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MAX8840ELT30+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX8840ELT30+T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX8840ELT30+T MAXIM 1500 In Stock

Description and Introduction

Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN The **MAX8840ELT30+T** is a linear battery charger IC manufactured by **MAXIM** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** MAXIM (Analog Devices)  
- **Part Number:** MAX8840ELT30+T  
- **Package:** 6-pin TDFN (Thin Dual Flat No-Lead)  
- **Input Voltage Range:** 4.25V to 6.5V  
- **Charge Voltage:** Fixed 3.0V (adjustable version also available)  
- **Charge Current:** Up to 500mA (programmable)  
- **Battery Chemistry:** Single-Cell Li+ (Lithium-Ion/Polymer)  
- **Charge Termination:** Constant-Current/Constant-Voltage (CC/CV)  
- **Thermal Regulation:** Yes (to prevent overheating)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- A compact, high-efficiency linear charger for single-cell Li+ batteries.  
- Integrates a pass transistor, current sensor, and thermal regulation.  
- Supports USB and AC adapter inputs.  
- Includes safety features like thermal shutdown and reverse discharge protection.  

### **Features:**  
- **Programmable Charge Current** (via external resistor).  
- **Automatic Recharge** (when battery voltage drops below threshold).  
- **No External MOSFET or Diode Required** (integrated pass element).  
- **Low Dropout Voltage** (for efficient charging).  
- **Charge Status Output** (open-drain indicator).  
- **Reverse Current Blocking** (protects input source).  
- **Small Footprint** (suitable for portable devices).  

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

Application Scenarios & Design Considerations

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

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