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LM2596SX-3.3/NOPB from NS,National Semiconductor

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LM2596SX-3.3/NOPB

Manufacturer: NS

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263

Partnumber Manufacturer Quantity Availability
LM2596SX-3.3/NOPB,LM2596SX33NOPB NS 3 In Stock

Description and Introduction

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 The LM2596SX-3.3/NOPB is a step-down (buck) switching regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 88%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2596SX-3.3/NOPB is a monolithic step-down voltage regulator that provides a fixed 3.3V output. It is designed for easy implementation and requires minimal external components. The device is suitable for a wide range of applications, including power supplies, industrial controls, and automotive systems.  

### **Features:**  
- **Simple and Efficient:** Requires only four external components.  
- **Fixed Output Voltage:** 3.3V with ±4% tolerance.  
- **Low Power Standby Mode:** Consumes only 80µA (typical) in shutdown.  
- **Internal Frequency Compensation:** Simplifies circuit design.  
- **Thermal Shutdown and Current Limit Protection:** Enhances reliability.  
- **Wide Input Voltage Range:** Supports 4.5V to 40V operation.  

This regulator is ideal for applications requiring a stable 3.3V supply from higher input voltages.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263

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