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LM2754SQ from NS,National Semiconductor

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LM2754SQ

Manufacturer: NS

800mA Switched Capacitor Flash LED Driver with Time-Out Protection

Partnumber Manufacturer Quantity Availability
LM2754SQ NS 1645 In Stock

Description and Introduction

800mA Switched Capacitor Flash LED Driver with Time-Out Protection The LM2754SQ is a switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Adjustable (via external resistors)  
- **Output Current:** Up to 100mA  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 85%  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM2754SQ is a high-efficiency, fixed-frequency, step-up DC-DC converter. It is designed for low-power applications requiring a regulated output voltage higher than the input supply.  

### **Features:**  
- **Integrated Power Switch** – Reduces external component count.  
- **Low Quiescent Current** – Enhances efficiency in light-load conditions.  
- **Soft-Start Capability** – Prevents inrush current at startup.  
- **Undervoltage Lockout (UVLO)** – Ensures proper operation under low input voltage conditions.  
- **Thermal Shutdown Protection** – Safeguards the device from overheating.  
- **Small Footprint** – Suitable for space-constrained applications.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

800mA Switched Capacitor Flash LED Driver with Time-Out Protection
Partnumber Manufacturer Quantity Availability
LM2754SQ NSC 8635 In Stock

Description and Introduction

800mA Switched Capacitor Flash LED Driver with Time-Out Protection The LM2754SQ is a switching regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Adjustable (via external resistors) or fixed (3.3V, 5V)  
- **Output Current:** Up to 300mA  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
- The LM2754SQ is a high-efficiency, step-up DC-DC switching regulator.  
- It is designed for low-power applications requiring a regulated voltage higher than the input supply.  
- The device integrates a power switch, oscillator, control logic, and feedback circuitry.  

### **Features:**  
- **Low Quiescent Current:** Typically 20µA (shutdown mode)  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Internal Compensation:** Simplifies external component selection.  
- **Short-Circuit Protection:** Enhances reliability in fault conditions.  
- **Synchronous Rectification:** Improves efficiency compared to diode-based solutions.  

For exact details, refer to the official datasheet from NSC (National Semiconductor).

Application Scenarios & Design Considerations

800mA Switched Capacitor Flash LED Driver with Time-Out Protection

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