Linear Technology LT3089IR#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $20.20 | $20.20 |
| 15+ | $4.65 | $69.75 |
| 25+ | $4.55 | $113.75 |
| 50+ | $4.29 | $214.50 |
| 100+ | $3.79 | $379.00 |
| N+ | $0.76 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Linear Technology |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 0V |
| Voltage - Output (Max) | 34.5V |
| Voltage Dropout (Max) | 1.65V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 50.5 µA |
| Current - Supply (Max) | 3 mA |
| PSRR | 90dB ~ 20dB (120Hz ~ 1MHz) |
| Control Features | Current Limit |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-8, D2PAK (7 Leads + Tab), TO-263CA |
| Supplier Device Package | 7-DDPAK |
| ROHS |
The LT3089IR#TRPBF is a versatile low dropout linear regulator from Linear Technology, offering an adjustable output from 0V to 34.5V with up to 800mA of current. Its exceptionally low quiescent current of 50.5 µA and high PSRR (90dB at 120Hz) make it ideal for noise-sensitive and battery-powered applications. The 7-DDPAK package ensures robust thermal performance for demanding industrial and audio designs.
- Wide Adjustable Range: Output from 0V to 34.5V provides maximum flexibility for various applications, from logic to high-voltage analog.
- Excellent Noise Rejection: 90dB PSRR at 120Hz ensures clean output, critical for high-fidelity audio and precision measurement.
- Ultra-Low Quiescent Current: 50.5 µA minimizes power loss, ideal for battery-powered and energy-harvesting systems.
- High Current Capability: 800mA output supports a wide range of loads while maintaining low dropout.
High-Voltage Adjustable Power Supplies
With an output range from 0V to 34.5V, this regulator is perfect for bench power supplies and lab equipment requiring a wide, precise voltage adjustment.
Battery Charging Circuits
The adjustable output and 800mA capability make it suitable for charging lithium-ion or lead-acid batteries where precise voltage control is needed.
Audio Amplifier Biasing
The high PSRR (90dB at 120Hz) ensures clean, ripple-free power for audio preamplifiers and DACs, improving sound quality.
Industrial Process Control
Use in industrial sensors and transmitters that require a stable, adjustable voltage rail from 0V to 34.5V, with low quiescent current for loop-powered devices.
Post-Regulation for High-Voltage Rails
Ideal for filtering noise from high-voltage DC-DC converters, providing a clean output for sensitive analog circuits in measurement equipment.
- Q: What is the output voltage range of the LT3089IR#TRPBF?
- A: The output voltage is adjustable from 0V up to 34.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly stated, but the output can go up to 34.5V; refer to the datasheet for input limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.65V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 50.5 µA.
- Q: What package is available?
- A: It comes in a 7-DDPAK package.
- Q: What is the output voltage range of the LT3089IR#TRPBF?
- A: The output voltage is adjustable from 0V up to 34.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly stated, but the output can go up to 34.5V; refer to the datasheet for input limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.65V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 50.5 µA.
- Q: What package is available?
- A: It comes in a 7-DDPAK package.

LT3089IR#TRPBF.pdf