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LM2596SX-ADJ/NOPB from NS,National Semiconductor

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LM2596SX-ADJ/NOPB

Manufacturer: NS

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2596SX-ADJ/NOPB,LM2596SXADJNOPB NS 1000 In Stock

Description and Introduction

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125 The **LM2596SX-ADJ/NOPB** is a **step-down (buck) switching voltage regulator** manufactured by **National Semiconductor (NS)**.  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Adjustable Output Voltage Range:** 1.23V to 37V (set by external resistors)  
- **Output Current:** 3A (maximum)  
- **Switching Frequency:** 150 kHz (fixed)  
- **Efficiency:** Up to 88% (depending on conditions)  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions and Features:**  
- **Simple Adjustable Output:** Uses an external resistor divider for voltage adjustment.  
- **Internal Current Limiting & Thermal Shutdown:** Protects against overloads and overheating.  
- **Low Power Standby Mode:** Consumes minimal current when disabled.  
- **Requires Few External Components:** Includes an internal fixed-frequency oscillator and a feedback control circuit.  
- **Stable with Low-ESR Output Capacitors:** Works with ceramic, tantalum, or aluminum electrolytic capacitors.  

This regulator is commonly used in **power supply designs, battery chargers, and industrial applications** requiring efficient step-down conversion.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125
Partnumber Manufacturer Quantity Availability
LM2596SX-ADJ/NOPB,LM2596SXADJNOPB NSC 5000 In Stock

Description and Introduction

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125 The LM2596SX-ADJ/NOPB is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC). Here are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Voltage Range:** Adjustable from 1.23V to 37V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz (fixed)  
- **Efficiency:** Up to 88%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions:**  
- The LM2596SX-ADJ/NOPB is a monolithic integrated circuit that provides all active functions for a step-down switching regulator.  
- It includes a fixed-frequency oscillator, feedback control, and an internal switch capable of handling up to 3A of load current.  
- The adjustable version allows the output voltage to be set using external resistors.  

### **Features:**  
- **3.3V, 5V, 12V, or Adjustable Output Versions**  
- **Low Power Standby Mode (IQ < 80 µA)**  
- **Thermal Shutdown and Current Limit Protection**  
- **Requires Only 4 External Components**  
- **Internal Soft-Start for Controlled Inrush Current**  
- **Available in TO-263 and TO-220 Packages**  

This regulator is commonly used in power supply applications requiring efficient voltage conversion.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125
Partnumber Manufacturer Quantity Availability
LM2596SX-ADJ/NOPB,LM2596SXADJNOPB NS 500 In Stock

Description and Introduction

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125 The **LM2596SX-ADJ/NOPB** is a **step-down (buck) switching regulator** manufactured by **Texas Instruments (formerly National Semiconductor, NS)**.  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Voltage Range:** Adjustable from 1.23V to 37V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz (fixed)  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions:**  
The LM2596SX-ADJ/NOPB is a **monolithic integrated circuit** that provides all active functions for a step-down switching regulator. It is designed for **high-efficiency power conversion** and includes a **fixed-frequency oscillator, feedback control, and an internal switch**.  

### **Features:**  
- **Adjustable Output Voltage** (via external resistors)  
- **3A Output Current Capability**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown & Current Limit Protection**  
- **Low Power Standby Mode (IQ ≈ 80µA)**  
- **Requires Few External Components**  
- **Stable with Low-ESR Output Capacitors**  

This regulator is commonly used in **power supplies, battery chargers, and DC-DC converter applications**.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125
Partnumber Manufacturer Quantity Availability
LM2596SX-ADJ/NOPB,LM2596SXADJNOPB NSC 1000 In Stock

Description and Introduction

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125 The LM2596SX-ADJ/NOPB is a switching regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Type:** Adjustable  
- **Output Voltage Range:** 1.23V to 37V  
- **Output Current:** 3A  
- **Input Voltage Range:** 4.5V to 40V  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  
- **Regulator Topology:** Buck (Step-Down)  
- **Protection Features:** Thermal Shutdown, Current Limiting  

### **Descriptions:**  
The LM2596SX-ADJ/NOPB is a step-down switching regulator capable of driving a 3A load with excellent line and load regulation. It requires minimal external components and includes a fixed-frequency oscillator, thermal shutdown, and current limiting.  

### **Features:**  
- Adjustable output voltage  
- Wide input voltage range  
- High efficiency  
- Internal frequency compensation  
- Thermal shutdown and current limit protection  
- Simple and easy-to-use design  

This regulator is commonly used in power supply applications, including industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 4.5V to 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125

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