Overview
The LM2596S-ADJ/NOPB is a monolithic integrated circuit from Texas Instruments, designed as a step-down (buck) switching regulator. This device is part of the SIMPLE SWITCHER® series and is capable of driving a 3-A load with excellent line and load regulation. It is available in both TO-220 and TO-263 packages, making it versatile for various applications. The LM2596S-ADJ/NOPB offers an adjustable output voltage range from 1.2 V to 37 V, making it highly flexible for different power supply needs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 4.5 V | - | 40 V | V |
| Output Voltage Range (Adjustable) | 1.2 V | - | 37 V | V |
| Output Current | - | - | 3 A | A |
| Switching Frequency | 127 kHz | 150 kHz | 173 kHz | kHz |
| Operating Temperature Range | -40 °C | - | 125 °C | °C |
| Standby Current | - | 80 µA | - | µA |
| Package Type | - | TO-220, TO-263 | - | - |
Key Features
- Adjustable output voltage range from 1.2 V to 37 V ±4% maximum over line and load conditions
- High efficiency and low power standby mode with typically 80 µA standby current
- Internal frequency compensation and a fixed-frequency oscillator at 150 kHz
- Requires only four external components for operation
- Thermal shutdown and current-limit protection for fault conditions
- TTL shutdown capability
- Uses readily available standard inductors
- Excellent line and load regulation specifications
Applications
- Appliances
- Grid infrastructure
- EPOS (Electronic Point of Sale) systems
- Home theater systems
Q & A
- What is the input voltage range of the LM2596S-ADJ/NOPB? The input voltage range is from 4.5 V to 40 V.
- What is the adjustable output voltage range of the LM2596S-ADJ/NOPB? The adjustable output voltage range is from 1.2 V to 37 V.
- What is the maximum output current of the LM2596S-ADJ/NOPB? The maximum output current is 3 A.
- What is the switching frequency of the LM2596S-ADJ/NOPB? The switching frequency is typically 150 kHz.
- What are the available package types for the LM2596S-ADJ/NOPB? The available package types are TO-220 and TO-263.
- Does the LM2596S-ADJ/NOPB have thermal protection? Yes, it includes thermal shutdown and current-limit protection.
- How many external components are required for the LM2596S-ADJ/NOPB to operate? Only four external components are required.
- What is the standby current of the LM2596S-ADJ/NOPB? The standby current is typically 80 µA.
- Can the LM2596S-ADJ/NOPB be used in safety-critical applications? It is advised to consult the datasheet and relevant documentation for use in safety-critical applications.
- What tools can be used to design with the LM2596S-ADJ/NOPB? The WEBENCH Power Designer can be used to create custom designs with the LM2596S-ADJ/NOPB.
