National Semiconductor LM2575S-15/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $10.28 | $10.28 |
| 15+ | $2.36 | $35.40 |
| 25+ | $2.31 | $57.75 |
| 50+ | $2.18 | $109.00 |
| 100+ | $1.93 | $193.00 |
| N+ | $0.39 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | SIMPLE SWITCHER® |
| Packaging | Bulk | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 15V |
| Voltage - Output (Max) | - |
| 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-15/NOPB is a Buck DC-DC converter from National Semiconductor, offering a fixed 15V output from a 4V to 40V input. It delivers up to 1A of load current with a 52kHz switching frequency. This simple and rugged converter is ideal for automotive, industrial, and telecom applications requiring a stable high-voltage step-down solution with minimal external components.
- Wide Input Voltage: Accepts 4V to 40V, making it suitable for automotive and industrial buses.
- Simple Design: Requires few external components, simplifying PCB layout and BOM.
- Robust Protection: Includes thermal shutdown and current limiting for reliable operation.
- Proven Technology: Based on the industry-standard LM2575 family, known for reliability.
Automotive Power Supplies
With a wide 4V to 40V input range, this buck converter can regulate 15V for sensors, actuators, and infotainment systems directly from a vehicle's battery bus, handling load dumps and transients.
Industrial Control Systems
In factory automation, the LM2575S-15/NOPB provides a stable 15V rail for PLCs, motor drivers, and industrial sensors from a 24V or 48V supply, simplifying power distribution.
Telecom and Networking Equipment
This converter can step down a 24V or 36V telecom bus to 15V for line cards, routers, and switches, offering a simple and robust power solution.
Battery Charging Circuits
The 15V output is suitable for charging lead-acid or Li-ion battery packs in backup systems, providing a regulated voltage source from a higher DC bus.
HVAC and Appliance Controls
For heating, ventilation, and air conditioning controllers, this buck converter delivers a reliable 15V supply from a rectified AC or DC bus, ensuring consistent operation.
- Q: What type of converter is the LM2575S-15/NOPB?
- A: It is a Buck (step-down) 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?
- A: The fixed output voltage is 15V.
- Q: What is the maximum output current?
- A: It can provide up to 1A of output current.
- Q: What is the switching frequency?
- A: The switching frequency is 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
LM2575S-15/NOPB.pdf
- Q: What type of converter is the LM2575S-15/NOPB?
- A: It is a Buck (step-down) 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?
- A: The fixed output voltage is 15V.
- Q: What is the maximum output current?
- A: It can provide up to 1A of output current.
- Q: What is the switching frequency?
- A: The switching frequency is 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
