National Semiconductor LM317HVKSTEEL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $191.32 | $191.32 |
| 15+ | $44.00 | $660.00 |
| 25+ | $43.05 | $1,076.25 |
| 50+ | $40.66 | $2,033.00 |
| 100+ | $35.87 | $3,587.00 |
| N+ | $7.17 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 60V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 57V |
| Voltage Dropout (Max) | - |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 80dB ~ 65dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-204AA, TO-3 |
| Supplier Device Package | TO-3-2 |
The LM317HVKSTEEL from National Semiconductor is a high-voltage adjustable linear regulator, delivering up to 1.5A with an output range from 1.25V to 57V. Its TO-3-2 metal package ensures excellent thermal performance for high-power applications. With PSRR of 80dB at 120Hz, it provides clean, stable power for audio, industrial, and telecom systems. This regulator is a robust choice for designs requiring high input voltages and precise output control.
- High Output Voltage: Adjustable up to 57V, suitable for high-voltage applications where standard LDOs fail.
- High Current Capability: 1.5A output supports power-hungry loads like amplifiers and industrial controls.
- Excellent PSRR: 80dB at 120Hz ensures low ripple, critical for audio and precision analog circuits.
- Robust TO-3 Package: Metal can package provides superior heat dissipation and mechanical strength for demanding environments.
High-Voltage Power Supplies
With an output up to 57V, the LM317HVKSTEEL is perfect for bench power supplies and lab equipment requiring adjustable high-voltage rails up to 1.5A.
Audio Amplifier Biasing
In tube amplifiers and high-end audio gear, this regulator provides a clean, adjustable positive rail for preamp stages, with 80dB PSRR reducing hum.
Industrial Motor Controllers
For industrial control systems operating on 48V buses, this LDO regulates down to a stable voltage for logic and driver circuits, ensuring reliable operation.
Solar Inverter Control
In solar power inverters, the LM317HVKSTEEL supplies a regulated voltage for control electronics from high DC bus voltages, improving system stability.
Telecom Power Distribution
In telecom equipment with -48V or +48V rails, this regulator provides a local adjustable supply for line cards and interface circuits.
Battery Charger Circuits
The adjustable output and 1.5A capability make it suitable for charging high-voltage battery packs (e.g., 48V) with a controlled voltage.
- Q: What is the output voltage range?
- A: The LM317HVKSTEEL is adjustable from 1.25V to 57V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage can be up to 60V (typical for HV version).
- Q: What is the PSRR?
- A: PSRR is 80dB at 120Hz, decreasing to 65dB at higher frequencies.
- Q: What package is available?
- A: It comes in a TO-3-2 metal can package.
- Q: Is this a positive regulator?
- A: Yes, it is a positive adjustable linear regulator.
- Q: What is the output voltage range?
- A: The LM317HVKSTEEL is adjustable from 1.25V to 57V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage can be up to 60V (typical for HV version).
- Q: What is the PSRR?
- A: PSRR is 80dB at 120Hz, decreasing to 65dB at higher frequencies.
- Q: What package is available?
- A: It comes in a TO-3-2 metal can package.
- Q: Is this a positive regulator?
- A: Yes, it is a positive adjustable linear regulator.

LM317HVKSTEEL.pdf