Texas Instruments LM2575S-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.18 | $4.18 |
| 15+ | $4.05 | $60.75 |
| 25+ | $3.96 | $99.00 |
| 50+ | $3.74 | $187.00 |
| 100+ | $3.30 | $330.00 |
| N+ | $0.66 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | SIMPLE SWITCHER® |
| Packaging | Tube | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.23V |
| Voltage - Output (Max) | 37V |
| Current - Output | 1A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263 (DDPAK-5) |
| ROHS |  |
The LM2575S-ADJ/NOPB is a simple step-down buck converter from Texas Instruments, designed for high-efficiency power conversion. It accepts a wide input voltage from 4V to 40V and delivers up to 1A of output current with an adjustable output from 1.23V to 37V. Operating at a fixed 52kHz switching frequency, it requires minimal external components and offers excellent line and load regulation. Its robust TO-263 (D2PAK) package ensures good thermal performance, making it ideal for industrial, automotive, and telecom applications.
- Wide Input Voltage Range (4V-40V): Handles unregulated supplies and automotive transients without external protection.
- High Efficiency: 52kHz switching with internal compensation reduces power loss, minimizing heat sink requirements.
- Simple Design: Requires only 4 external components, reducing board space and BOM cost.
- Adjustable Output: Flexible 1.23V to 37V output allows use across multiple logic and analog rails.
- Proven Reliability: TI's legacy LM2575 series is field-tested in harsh industrial environments.
Battery-Powered Devices
With a wide 4V to 40V input range and 52kHz fixed frequency, this buck converter efficiently regulates lower voltages from multi-cell batteries, extending runtime in portable instruments and industrial handhelds.
Automotive Systems
The 40V maximum input handles load-dump transients in 12V and 24V vehicle electrical systems, providing a regulated 1A supply for sensors, ECUs, and infotainment modules.
Industrial Control
Its simple external component requirement and robust TO-263 package make it suitable for industrial control panels, PLCs, and motor control auxiliary supplies where reliability and thermal dissipation are critical.
Telecom and Networking
This converter can step down 24V or 48V telecom rails to logic-level voltages for line cards, routers, and switches, offering a cost-effective solution for low-power auxiliary circuits.
Distributed Power Architectures
As a pre-regulator or point-of-load converter, it provides a stable intermediate bus from a wide-ranging input, simplifying downstream high-efficiency POL converters.
- Q: What type of converter is the LM2575S-ADJ/NOPB?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage range?
- A: The adjustable output voltage range is 1.23V to 37V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 52kHz.
- Q: What package is available?
- A: It comes in a TO-263-6 (D2PAK) package with 5 leads and a tab.
LM2575S-ADJ/NOPB.pdf
- Q: What type of converter is the LM2575S-ADJ/NOPB?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage range?
- A: The adjustable output voltage range is 1.23V to 37V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 52kHz.
- Q: What package is available?
- A: It comes in a TO-263-6 (D2PAK) package with 5 leads and a tab.
