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LM3555TLX/NOPB from NS,National Semiconductor

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LM3555TLX/NOPB

Manufacturer: NS

Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface 12-DSBGA -30 to 85

Partnumber Manufacturer Quantity Availability
LM3555TLX/NOPB,LM3555TLXNOPB NS 920 In Stock

Description and Introduction

Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface 12-DSBGA -30 to 85 The **LM3555TLX/NOPB** is a **LED flash driver** manufactured by **Texas Instruments (NS)**. Below are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (NS)  
- **Category:** PMIC - LED Drivers  
- **Type:** LED Flash Driver  
- **Output Type:** Adjustable  
- **Topology:** Boost (Step-Up)  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Up to 18V  
- **Switching Frequency:** 1.2MHz (typical)  
- **Number of Outputs:** 1  
- **Current - Output / Channel:** 1.2A (Flash Mode), 300mA (Torch Mode)  
- **Dimming:** Analog, PWM  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package / Case:** 12-WFDFN (2.5x2.5mm)  
- **Mounting Type:** Surface Mount  

### **Descriptions:**  
The **LM3555TLX/NOPB** is a high-efficiency, dual-mode LED driver designed for camera flash and torch applications in smartphones and portable devices. It integrates a high-current boost converter with I²C-compatible control, enabling precise brightness adjustment.  

### **Features:**  
- **Dual-Mode Operation:** Supports **Flash Mode (1.2A)** and **Torch Mode (300mA)**.  
- **I²C-Compatible Interface:** Allows programmable current control and mode selection.  
- **High Efficiency:** Up to **85%** efficiency in boost operation.  
- **Integrated Safety Features:**  
  - Thermal shutdown  
  - LED open/short protection  
  - Undervoltage lockout (UVLO)  
- **Small Footprint:** 12-pin WDFN package (2.5mm x 2.5mm).  
- **Low Quiescent Current:** 1.5µA in shutdown mode.  

This device is optimized for space-constrained applications requiring high-brightness LED control.

Application Scenarios & Design Considerations

Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface 12-DSBGA -30 to 85

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