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LM3557SD-2 from NS,National Semiconductor

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LM3557SD-2

Manufacturer: NS

Step-Up Converter for White LED Applications

Partnumber Manufacturer Quantity Availability
LM3557SD-2,LM3557SD2 NS 32500 In Stock

Description and Introduction

Step-Up Converter for White LED Applications The LM3557SD-2 is a manufacturer part from National Semiconductor (NS).  

**Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Part Number:** LM3557SD-2  
- **Type:** LED Driver IC  
- **Function:** Designed for driving high-brightness LEDs  
- **Package:** WSON (Wafer-Scale Small Outline No-Lead)  
- **Operating Voltage Range:** Typically 2.7V to 5.5V  
- **Output Current:** Adjustable, supports high-current LED driving  
- **Features:** Integrated boost converter, PWM dimming control, thermal shutdown protection  

**Descriptions and Features:**  
- The LM3557SD-2 is a compact, high-efficiency LED driver IC.  
- It includes a boost converter to step up input voltage for driving LEDs.  
- Supports PWM (Pulse-Width Modulation) dimming for brightness control.  
- Built-in thermal shutdown ensures safe operation under high temperatures.  
- Suitable for applications like camera flash, portable lighting, and display backlighting.  

(Note: Exact specifications may vary; refer to the official datasheet for precise details.)

Application Scenarios & Design Considerations

Step-Up Converter for White LED Applications

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