Texas Instruments LM1084IS-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.15 | $3.15 |
| 15+ | $3.05 | $45.75 |
| 25+ | $2.99 | $74.75 |
| 50+ | $2.82 | $141.00 |
| 100+ | $2.49 | $249.00 |
| N+ | $0.50 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 29V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 27.5V |
| Voltage Dropout (Max) | 1.5V @ 5A |
| Current - Output | 5A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 75dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |
The LM1084IS-ADJ/NOPB from Texas Instruments is a 5A adjustable low dropout linear regulator. Output voltage is set from 1.25V to 27.5V with two resistors. Featuring a 1.5V dropout at full load and 75dB PSRR, it delivers clean, stable power for a wide range of applications. The TO-263 package ensures robust thermal management.
- Adjustable Output (1.25V-27.5V): Provides design flexibility for various voltage requirements with a simple resistor divider.
- High 5A Current Capability: Suitable for high-power loads without additional pass elements.
- Superior PSRR (75dB @ 120Hz): Excellent ripple rejection for noise-sensitive analog and RF circuits.
- Low Dropout (1.5V @ 5A): Maximizes efficiency by allowing lower input voltage headroom.
Variable Bench Power Supplies
Create a precision 1.25V to 27.5V adjustable supply with 5A capability. The low dropout and high PSRR (75dB) ensure clean, stable output across the range.
Custom Logic Voltage Rails
Generate non-standard voltages (e.g., 3.6V, 4.2V) for specialized microcontrollers or sensors, using external resistors for exact setpoints.
High-Current LED Drivers
Drive high-power LED arrays with a constant voltage, using the adjustable output to match LED string voltage requirements.
Laboratory Test Equipment
Provide a stable, low-noise adjustable rail for benchtop instruments, with 75dB ripple rejection for accurate measurements.
Industrial Process Control
Power analog transducers and actuators requiring a precise, adjustable supply voltage, ensuring consistent performance.
Audio Amplifier Front-Ends
Supply a clean, adjustable voltage to audio preamplifiers, minimizing hum and noise with high PSRR.
- Q: What is the output voltage range of the LM1084IS-ADJ/NOPB?
- A: The adjustable version allows output from 1.25V up to 27.5V, set by two external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 5A of continuous output current.
- Q: What is the reference voltage?
- A: The internal reference is 1.25V between the output and adjust pins.
- Q: What is the dropout voltage?
- A: Dropout is typically 1.5V at full 5A load, allowing operation with modest input headroom.
- Q: What is the quiescent current?
- A: Quiescent current is 10mA, typical for high-current adjustable regulators.
- Q: What package is available?
- A: It is offered in the TO-263 (DDPAK-3) package for surface-mount assembly and heat dissipation.
- Q: What is the output voltage range of the LM1084IS-ADJ/NOPB?
- A: The adjustable version allows output from 1.25V up to 27.5V, set by two external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 5A of continuous output current.
- Q: What is the reference voltage?
- A: The internal reference is 1.25V between the output and adjust pins.
- Q: What is the dropout voltage?
- A: Dropout is typically 1.5V at full 5A load, allowing operation with modest input headroom.
- Q: What is the quiescent current?
- A: Quiescent current is 10mA, typical for high-current adjustable regulators.
- Q: What package is available?
- A: It is offered in the TO-263 (DDPAK-3) package for surface-mount assembly and heat dissipation.

LM1084IS-ADJ/NOPB.pdf