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LTC4557EUD from LT

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LTC4557EUD

Manufacturer: LT

Dual SIM/Smart Card Power Supply and Interface

Partnumber Manufacturer Quantity Availability
LTC4557EUD LT 4000 In Stock

Description and Introduction

Dual SIM/Smart Card Power Supply and Interface The LTC4557EUD is a specific part manufactured by Linear Technology (now part of Analog Devices). Below are the factual details about its specifications, descriptions, and features:

### **Manufacturer:**  
- **Linear Technology (LT)** – Now part of Analog Devices.

### **Part Number:**  
- **LTC4557EUD**

### **Package:**  
- **20-Lead QFN (4mm x 4mm)**

### **Key Specifications & Features:**  
1. **Function:**  
   - **Dual Low Noise, Low Dropout (LDO) Linear Regulator**  

2. **Output Voltage Range:**  
   - Adjustable or fixed output voltage options (specific values depend on variant).  

3. **Output Current:**  
   - Typically up to **300mA per channel** (exact value may vary).  

4. **Dropout Voltage:**  
   - Low dropout voltage for efficient regulation.  

5. **Noise Performance:**  
   - Optimized for **low noise** applications.  

6. **Input Voltage Range:**  
   - Supports a wide input range (exact range depends on variant).  

7. **Protection Features:**  
   - Includes **overcurrent and thermal shutdown protection**.  

8. **Applications:**  
   - Used in **RF, precision analog, and noise-sensitive circuits**.  

### **Additional Notes:**  
- The LTC4557EUD is designed for **space-constrained applications** due to its small QFN package.  
- It is commonly used in **portable and battery-powered systems**.  

For exact electrical characteristics, refer to the official **LTC4557EUD datasheet** from Analog Devices (formerly Linear Technology).

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