Overview
The LM2596SX-5.0/NOPB from Texas Instruments is a SIMPLE SWITCHER® step-down (buck) switching regulator. It is designed to efficiently manage power with a low component count, making it ideal for a broad range of power supply circuits. This regulator can handle an input voltage range of 4.5V to 40V and deliver up to 3A of output current. It operates at a fixed switching frequency of 150 kHz, allowing the use of smaller filter components compared to lower frequency regulators. The LM2596SX-5.0/NOPB is packaged in a 5-pin TO-263 (D2PAK) surface mount format, which is suitable for space-constrained applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5V to 40V | V |
| Output Voltage | 5V (fixed) | V |
| Output Current | Up to 3A | A |
| Switching Frequency | 150 kHz (typical) | kHz |
| Package Type | TO-263 (D2PAK) | - |
| Number of Pins | 5 | - |
| Operating Temperature Range | -40°C to 125°C | °C |
| Standby Current | Typically 80 µA | µA |
| Efficiency | Up to 80% | % |
Key Features
- Requires only four external components for operation.
- Excellent line and load regulation specifications.
- TTL shutdown capability.
- High efficiency.
- Uses readily available standard inductors.
- Thermal shutdown and current-limit protection.
- Low power standby mode with typically 80 µA standby current.
- Compliant with RoHS (Restriction of Hazardous Substances), though not Reach compliant.
Applications
- Automotive: Suitable for automotive power supplies, particularly in infotainment systems where stable voltage and space efficiency are crucial.
- Consumer Electronics: Ideal for powering small, battery-operated devices such as laptops and cameras.
- Telecommunications: Can be used in telecom infrastructure to stabilize fluctuating voltages.
- Industrial Automation: Useful in driving sensors, controllers, and other devices in automated manufacturing lines.
- Electronic Manufacturing: Suitable for power supplies in electronic assembly, such as soldering stations requiring precise voltage adjustments).
Q & A
- What is the input voltage range of the LM2596SX-5.0/NOPB?
The input voltage range is from 4.5V to 40V.
- What is the maximum output current of the LM2596SX-5.0/NOPB?
The maximum output current is up to 3A.
- What is the switching frequency of the LM2596SX-5.0/NOPB?
The switching frequency is typically 150 kHz.
- What package type is the LM2596SX-5.0/NOPB available in?
It is available in a 5-pin TO-263 (D2PAK) surface mount package.
- What is the operating temperature range of the LM2596SX-5.0/NOPB?
The operating temperature range is from -40°C to 125°C.
- Does the LM2596SX-5.0/NOPB have thermal shutdown and current-limit protection?
Yes, it includes thermal shutdown and current-limit protection.
- What is the standby current of the LM2596SX-5.0/NOPB?
The standby current is typically 80 µA.
- Is the LM2596SX-5.0/NOPB RoHS compliant?
Yes, it is RoHS compliant, though not Reach compliant.
- How many external components are required for the LM2596SX-5.0/NOPB to operate?
It requires only four external components.
- What are some typical applications of the LM2596SX-5.0/NOPB?
It is used in automotive, consumer electronics, telecommunications, industrial automation, and electronic manufacturing.
