Overview
The LM2595SX-5.0/NOPB is a high-efficiency switching regulator IC produced by Texas Instruments. It is part of the LM2595 series, which offers all the active functions required for a step-down (buck) switching regulator. This specific model provides a fixed 5V output voltage and is capable of driving a 1-A load. The regulator features a wide input voltage range of 4.5V to 40V, making it versatile for various applications. It is packaged in a TO-263-5 surface-mount package and is known for its excellent line and load regulation, high efficiency, and built-in protection mechanisms such as thermal shutdown and current limiting.
Key Specifications
| Parameter | Value |
|---|---|
| Vin (min) | 4.5 V |
| Vin (max) | 40 V |
| Vout | 5 V (fixed) |
| Maximum Continuous Drain Current | 1 A |
| Switching Frequency (min) | 110 kHz |
| Switching Frequency (max) | 173 kHz |
| Operating Temperature Range | -40°C to 125°C |
| Package | TO-263-5 |
| Quiescent Current (typ) | 5 mA |
| Duty Cycle (max) | 100% |
Key Features
- High-efficiency switching regulator with a fixed 5V output voltage.
- Wide input voltage range: 4.5V to 40V.
- Maximum output current: 1 A.
- Excellent line and load regulation.
- Thermal shutdown and current-limiting protection.
- Pulse-Width Modulation (PWM) control option.
- Low dropout voltage regulation.
- Soft-start output current transient response.
- TTL shutdown capability.
- Low power standby mode with a quiescent current of typically 85 µA.
Applications
The LM2595SX-5.0/NOPB is widely used in various electronic circuits to provide a regulated power supply. Common applications include:
- Battery chargers.
- Power adapters.
- Automotive systems.
- General-purpose power supplies in industrial and consumer electronics.
Q & A
- What is the input voltage range of the LM2595SX-5.0/NOPB?
The input voltage range is from 4.5V to 40V. - What is the fixed output voltage of the LM2595SX-5.0/NOPB?
The fixed output voltage is 5V. - What is the maximum continuous drain current of the LM2595SX-5.0/NOPB?
The maximum continuous drain current is 1 A. - What are the key protection features of the LM2595SX-5.0/NOPB?
The key protection features include thermal shutdown and current limiting. - What is the switching frequency range of the LM2595SX-5.0/NOPB?
The switching frequency range is from 110 kHz to 173 kHz. - What package type is the LM2595SX-5.0/NOPB available in?
The LM2595SX-5.0/NOPB is available in a TO-263-5 surface-mount package. - What is the operating temperature range of the LM2595SX-5.0/NOPB?
The operating temperature range is from -40°C to 125°C. - Does the LM2595SX-5.0/NOPB have a low power standby mode?
Yes, it has a low power standby mode with a quiescent current of typically 85 µA. - What are some common applications of the LM2595SX-5.0/NOPB?
Common applications include battery chargers, power adapters, and automotive systems. - Is the LM2595SX-5.0/NOPB RoHS compliant?
Yes, the LM2595SX-5.0/NOPB is RoHS compliant.
