Texas Instruments LM138K STEEL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $414.93 | $414.93 |
| 15+ | $95.43 | $1,431.45 |
| 25+ | $93.36 | $2,334.00 |
| 50+ | $88.17 | $4,408.50 |
| 100+ | $77.80 | $7,780.00 |
| N+ | $15.56 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tray | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Adjustable |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 32V |
| Voltage Dropout (Max) | - |
| Current - Output | 5A |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 75dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature |
| Operating Temperature | -55°C ~ 150°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-204AA, TO-3 |
| Supplier Device Package | TO-3-2 |
| ROHS |  |
The LM138K STEEL is a high-current adjustable linear regulator from Texas Instruments, delivering up to 5A with an output range of 1.2V to 32V. With a PSRR of 75dB at 120Hz, it provides clean, stable power for demanding applications. The TO-3-2 steel package ensures excellent heat dissipation and mechanical robustness.
- High Current (5A): Supports power-hungry loads without external pass elements.
- Excellent PSRR (75dB): Provides clean output, minimizing noise in sensitive circuits.
- TO-3-2 Steel Package: Superior thermal performance and durability for industrial environments.
- Adjustable Output (1.2V-32V): Flexible for a wide range of applications.
High-Power Audio Amplifiers
The 5A current capability and 75dB PSRR make it ideal for powering high-fidelity audio amplifier output stages, ensuring clean, dynamic sound.
Industrial Motor Controllers
For servo drives and stepper controllers, the LM138K STEEL provides a stable, adjustable logic and analog supply rail.
Laboratory Power Supplies
Its high current and adjustable output make it a core component for building robust, variable bench power supplies.
Telecom Base Stations
Provides a reliable 24V or 28V rail for RF power amplifiers, with excellent ripple rejection to maintain signal integrity.
Battery Charging Systems
Can be used to build high-current chargers for 12V and 24V battery banks, with precise voltage control.
Test and Measurement Equipment
The low noise and high current make it suitable for powering precision measurement circuits that require a stable, clean supply.
- Q: What is the output voltage range of the LM138K STEEL?
- A: This adjustable LDO can output from 1.2V up to a maximum of 32V.
- Q: What is the maximum output current?
- A: The LM138K STEEL is capable of delivering up to 5A of output current.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 1.2V higher than the desired output voltage. The maximum input is not specified in the provided data.
- Q: What is the dropout voltage?
- A: Dropout voltage is not listed in the provided technical data. Please consult the full datasheet.
- Q: What is the PSRR performance?
- A: The PSRR is 75dB at 120Hz, providing strong rejection of power supply ripple.
- Q: What package is the LM138K STEEL available in?
- A: It comes in a TO-3-2 steel package, which is a classic power transistor package with excellent thermal dissipation.
LM138K STEEL.pdf
- Q: What is the output voltage range of the LM138K STEEL?
- A: This adjustable LDO can output from 1.2V up to a maximum of 32V.
- Q: What is the maximum output current?
- A: The LM138K STEEL is capable of delivering up to 5A of output current.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 1.2V higher than the desired output voltage. The maximum input is not specified in the provided data.
- Q: What is the dropout voltage?
- A: Dropout voltage is not listed in the provided technical data. Please consult the full datasheet.
- Q: What is the PSRR performance?
- A: The PSRR is 75dB at 120Hz, providing strong rejection of power supply ripple.
- Q: What package is the LM138K STEEL available in?
- A: It comes in a TO-3-2 steel package, which is a classic power transistor package with excellent thermal dissipation.
