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L4955V5.1 from ST,ST Microelectronics

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L4955V5.1

Manufacturer: ST

5A ULDO LINEAR REGULATORS FAMILY

Partnumber Manufacturer Quantity Availability
L4955V5.1,L4955V51 ST 60 In Stock

Description and Introduction

5A ULDO LINEAR REGULATORS FAMILY The part **L4955V5.1** is manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Output Voltage:** 5.1V (fixed)  
- **Output Current:** Up to 150 mA  
- **Input Voltage Range:** 8V to 26V  
- **Dropout Voltage:** Typically 0.5V at full load  
- **Line Regulation:** ±0.2% (typical)  
- **Load Regulation:** ±0.4% (typical)  
- **Quiescent Current:** Typically 4 mA  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220, TO-220FP, D²PAK  

### **Features:**  
- **Low Dropout Voltage**  
- **Thermal Overload Protection**  
- **Short-Circuit Protection**  
- **Reverse Polarity Protection**  
- **Adjustable Output Voltage (for other variants)**  
- **Low Quiescent Current**  

### **Applications:**  
- Automotive systems  
- Industrial controls  
- Battery-powered devices  
- Power management circuits  

This part is a **low-dropout (LDO) voltage regulator** designed for stable and efficient power supply applications.

Application Scenarios & Design Considerations

5A ULDO LINEAR REGULATORS FAMILY

Alternative Part Number

  • LM2940CT-5.0 --: Widely available 5V low-dropout linear regulator in TO-220, functionally similar to the L4955V5.1 with good availability and low cost.
  • L78S05CV --: ST 5V fixed linear regulator in TO-220 with similar current capability, same manufacturer family and pinout compatibility.
  • MC7805CTG --: Standard 5V fixed linear regulator in TO-220, robust and widely stocked, suitable as a drop-in replacement in most 5V regulator applications.

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