National Semiconductor LM2575HVS-15/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.17 | $3.17 |
| 15+ | $3.07 | $46.05 |
| 25+ | $3.01 | $75.25 |
| 50+ | $2.84 | $142.00 |
| 100+ | $2.51 | $251.00 |
| N+ | $0.50 | 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) | 60V |
| 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 LM2575HVS-15 is a robust Buck DC-DC converter from National Semiconductor, designed to deliver a fixed 15V output from a wide 4V to 60V input supply. Capable of providing up to 1A of load current, it operates at a fixed 52kHz switching frequency, balancing efficiency with component size. Housed in a TO-263-6 (D2PAK) package, this converter is well-suited for industrial, automotive, and telecom applications requiring reliable step-down conversion from high-voltage rails.
- Wide Input Voltage Range (4V-60V): Handles automotive load dumps and industrial 48V rails without external protection.
- High Efficiency at 52kHz: Reduces switching losses and allows for smaller external inductor and capacitor values.
- 1A Output Current Capability: Sufficient for powering sensors, microcontrollers, and auxiliary loads.
- Fixed 15V Output: Simplifies design with no external resistor divider needed for voltage setting.
- D2PAK Package: Excellent thermal performance for continuous operation in enclosed systems.
Industrial Power Supplies
With a wide 4V to 60V input range, the LM2575HVS-15 can regulate 15V rails in industrial control systems that experience fluctuating input voltages from 24V or 48V buses, ensuring stable operation.
Automotive Electronics
In automotive environments, input voltage can spike during load dumps. The 60V maximum input rating provides headroom for 12V and 24V systems, delivering a regulated 15V supply for sensors and actuators.
Telecom Infrastructure
Telecom equipment often uses 48V backplanes. This buck converter efficiently steps down 48V to 15V for line cards and communication modules, reducing heat dissipation with its 52kHz switching.
Battery Charging Systems
For lead-acid or lithium battery stacks in the 18V-48V range, the LM2575HVS-15 provides a constant 15V output for charging or intermediate bus generation, simplifying the power architecture.
HVAC Controllers
HVAC systems use 24V AC rectified to DC. The LM2575HVS-15 accepts the rectified voltage (up to 60V) and delivers a clean 15V rail for microcontrollers and motor drivers.
Distributed Power Architectures
In systems with a 48V intermediate bus, this converter creates a local 15V point-of-load supply for analog front-ends and communication interfaces, improving noise isolation.
- Q: What type of converter is the LM2575HVS-15?
- 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 60V.
- Q: What is the output voltage?
- A: The fixed output voltage is 15V.
- 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 52kHz.
- Q: What package is available?
- A: It comes in a TO-263-6 (D2PAK) package.
LM2575HVS-15/NOPB.pdf
- Q: What type of converter is the LM2575HVS-15?
- 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 60V.
- Q: What is the output voltage?
- A: The fixed output voltage is 15V.
- 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 52kHz.
- Q: What package is available?
- A: It comes in a TO-263-6 (D2PAK) package.
