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LM3544M-H from SOIC

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LM3544M-H

Manufacturer: SOIC

Quad Port USB Power Distribution Switch and Over-Current Protection

Partnumber Manufacturer Quantity Availability
LM3544M-H,LM3544MH SOIC 176 In Stock

Description and Introduction

Quad Port USB Power Distribution Switch and Over-Current Protection The LM3544M-H is a switching regulator from Texas Instruments. Here are the factual details from Ic-phoenix technical data files:

### **Manufacturer**:  
Texas Instruments  

### **Package**:  
SOIC (Small Outline Integrated Circuit)  

### **Specifications**:  
- **Input Voltage Range**: 4.5V to 42V  
- **Output Voltage**: Adjustable  
- **Output Current**: Up to 1.5A  
- **Switching Frequency**: 500kHz (typical)  
- **Efficiency**: Up to 95%  
- **Operating Temperature Range**: -40°C to +125°C  
- **Protection Features**: Overcurrent, Overtemperature, Undervoltage Lockout (UVLO)  

### **Descriptions**:  
The LM3544M-H is a high-efficiency, step-down (buck) DC-DC converter designed for a wide input voltage range. It integrates a high-side N-channel MOSFET and supports adjustable output voltage with external resistors.  

### **Features**:  
- Wide input voltage range (4.5V to 42V)  
- Integrated 1.5A N-channel MOSFET  
- Adjustable output voltage  
- High switching frequency (500kHz)  
- Thermal shutdown and current limit protection  
- Low shutdown current (<1µA)  
- SOIC-8 package  

This information is based solely on the provided knowledge base.

Application Scenarios & Design Considerations

Quad Port USB Power Distribution Switch and Over-Current Protection
Partnumber Manufacturer Quantity Availability
LM3544M-H,LM3544MH NS 2688 In Stock

Description and Introduction

Quad Port USB Power Distribution Switch and Over-Current Protection The LM3544M-H is a high-performance LED driver manufactured by NS (National Semiconductor). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** NS (National Semiconductor)  
- **Type:** LED Driver IC  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Current:** Up to 1A (adjustable)  
- **Switching Frequency:** Adjustable (typically up to 1MHz)  
- **Efficiency:** High efficiency (>90%)  
- **Package:** SOP-8 (Small Outline Package)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Dimming Control:** Supports PWM dimming  
- **Protection Features:** Over-temperature protection, over-current protection  

### **Descriptions:**  
The LM3544M-H is a constant-current LED driver designed for driving high-brightness LEDs in various applications, including automotive, industrial, and general lighting. It integrates a high-side current sense and provides precise current regulation.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 30V for versatile applications.  
- **High-Efficiency Buck Converter:** Optimized for LED driving with minimal power loss.  
- **Adjustable Output Current:** Allows precise control of LED brightness.  
- **PWM Dimming Support:** Enables brightness control via external PWM signals.  
- **Integrated Protection:** Includes thermal shutdown and over-current protection for reliability.  
- **Compact Package:** SOP-8 form factor for space-constrained designs.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Quad Port USB Power Distribution Switch and Over-Current Protection

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