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LM2753SDX from NATIONAL,National Semiconductor

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LM2753SDX

Manufacturer: NATIONAL, NS,NS

High Power Switched Capacitor Voltage Convertor/Flash LED Driver

Partnumber Manufacturer Quantity Availability
LM2753SDX NATIONAL, NS,NS 91000 In Stock

Description and Introduction

High Power Switched Capacitor Voltage Convertor/Flash LED Driver The LM2753SDX is a switching regulator manufactured by National Semiconductor (now part of Texas Instruments). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Adjustable (via external resistors) or fixed (3.3V, 5V options)  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (3mm x 3mm)  

### **Descriptions:**  
- The LM2753SDX is a high-efficiency, fixed-frequency step-up DC-DC converter.  
- It is designed for battery-powered applications requiring regulated output voltages.  
- The device integrates a power switch, minimizing external component count.  

### **Features:**  
- **Fixed-Frequency Operation:** Ensures predictable noise performance.  
- **Low Quiescent Current:** Improves battery life in portable applications.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Prevents operation below minimum input voltage.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Synchronous Rectification:** Enhances efficiency compared to diode-based solutions.  

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

Application Scenarios & Design Considerations

High Power Switched Capacitor Voltage Convertor/Flash LED Driver

Alternative Part Number

  • TPS61020DRC --: Boost converter with integrated switch and similar input/output voltage range, suitable replacement for LED driver and general boost applications.
  • LT1932ES6 --: Constant-current LED driver in a small package with comparable functionality and current capability.
  • MAX1848EKA --: Step-up converter for white LED backlight applications with similar topology and output current.
  • TPS61040DBVR --: Boost converter in SOT-23-5 that can drive white LED loads similar to the LM2753 charge pump; widely available and pin-function compatible for many LED driver designs.
  • MAX1595EUA --: Regulated charge-pump converter in a small package, functionally similar to the LM2753 LED charge pump and suitable as a drop-in style replacement in low-current LED bias circuits.
  • CAT3200TDI-GT3 --: Low-noise charge pump LED driver with comparable output current and package options, offering a different series naming while serving the same application class.

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