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LM2754SQ from NS,National Semiconductor

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LM2754SQ

Manufacturer: NS, NSC

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

Partnumber Manufacturer Quantity Availability
LM2754SQ NS, NSC 10280 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

Alternative Part Number

  • TPS61054DRLR --: Boost converter with integrated flash LED driver in a small package, functionally similar to the LM2754SQ LED driver.
  • MAX1561ETA+T --: Inductor-based white LED driver with comparable current capability, suitable as a drop-in functional replacement.
  • LT3465ES6#TRMPBF --: Compact step-up LED driver offering similar output current and dimming control for backlight applications.
  • TPS61020DRCR --: Boost converter with integrated switch and similar input/output voltage range, suitable as a functional substitute in LED driver applications.
  • MAX16819ATT+T --: High-brightness LED driver with comparable current regulation features, usable in similar lighting designs.
  • AP3015AKTR-G1 --: Compact boost converter IC offering similar switching regulator functionality for small-form-factor LED circuits.

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