TAEJIN LM1085RS-ADJ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.87 | $1.87 |
| 15+ | $0.43 | $6.45 |
| 25+ | $0.42 | $10.50 |
| 50+ | $0.40 | $20.00 |
| 100+ | $0.35 | $35.00 |
| N+ | $0.07 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 15V |
| Voltage Dropout (Max) | 1.5V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 90 µA |
| Current - Supply (Max) | 10 mA |
| PSRR | 65dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-252-3 |
| ROHS |
The LM1085RS-ADJ is a high-current adjustable low dropout linear regulator capable of delivering up to 3A with an output voltage range up to 15V. Featuring a 1.25V reference and a dropout of 1.5V at full load, it provides stable regulation for demanding applications. The 90µA quiescent current and 65dB PSRR at 120Hz make it efficient and noise-resistant. Housed in a TO-252-3 package, it is designed for surface-mount power applications requiring flexibility and reliability.
- High Current Capacity: 3A output supports power-hungry loads, reducing the need for multiple parallel regulators.
- Adjustable Output: Voltage set by external resistors up to 15V, offering design flexibility for various applications.
- Low Quiescent Current: 90µA minimizes power loss, improving overall system efficiency.
- Good Ripple Rejection: 65dB PSRR at 120Hz filters mains-frequency ripple for cleaner DC output.
High-Current Adjustable Power Supplies
With 3A output capability and adjustable voltage up to 15V, this regulator is ideal for bench power supplies and lab equipment requiring flexible voltage settings.
Post-Regulation for Switching Converters
Using the LM1085RS-ADJ after a DC-DC converter provides clean, low-noise output with 65dB PSRR at 120Hz, reducing ripple for sensitive loads.
Battery Charging Circuits
The adjustable output allows precise voltage setting for charging lead-acid or lithium batteries, with 3A current handling for faster charging.
Industrial Control Systems
Powering PLCs and motor controllers, the robust TO-252 package and 3A current capability ensure reliable operation in harsh environments.
Audio Amplifier Power Stages
The low quiescent current and high PSRR make it suitable for powering audio preamplifiers and drivers, minimizing hum and noise.
LED Lighting Drivers
Adjustable output enables constant voltage for LED strips, with 3A capacity supporting multiple high-power LEDs in series.
- Q: What is the output voltage of the LM1085RS-ADJ?
- A: It is an adjustable LDO with an output voltage range up to 15V, set by external resistors.
- Q: What is the maximum output current?
- A: The device can deliver up to 3A of continuous output current, suitable for high-power loads.
- Q: What is the input voltage range?
- A: The reference voltage is 1.25V, and the input must be at least 1.5V above the desired output.
- Q: What is the dropout voltage?
- A: Dropout is 1.5V at 3A load, requiring adequate headroom for full current capability.
- Q: What is the quiescent current?
- A: The quiescent current is 90µA, which is low for a 3A regulator, aiding efficiency.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package, suitable for surface-mount designs with thermal dissipation.
- Q: What is the output voltage of the LM1085RS-ADJ?
- A: It is an adjustable LDO with an output voltage range up to 15V, set by external resistors.
- Q: What is the maximum output current?
- A: The device can deliver up to 3A of continuous output current, suitable for high-power loads.
- Q: What is the input voltage range?
- A: The reference voltage is 1.25V, and the input must be at least 1.5V above the desired output.
- Q: What is the dropout voltage?
- A: Dropout is 1.5V at 3A load, requiring adequate headroom for full current capability.
- Q: What is the quiescent current?
- A: The quiescent current is 90µA, which is low for a 3A regulator, aiding efficiency.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package, suitable for surface-mount designs with thermal dissipation.

LM1085RS-ADJ.pdf