Linear Technology LT1587CT-1.5#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $22.76 | $22.76 |
| 15+ | $5.23 | $78.45 |
| 25+ | $5.12 | $128.00 |
| 50+ | $4.84 | $242.00 |
| 100+ | $4.27 | $427.00 |
| N+ | $0.85 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Linear Technology |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.3V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 72dB (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-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |
The LT1587CT-1.5#PBF from Linear Technology is a 3A low dropout regulator with a fixed 1.5V output. Featuring a low 1.3V dropout at full load and excellent 72dB PSRR at 120Hz, it delivers clean, stable power for noise-sensitive applications. The TO-220-3 package provides robust thermal performance for continuous operation in industrial and audio systems.
- Excellent Ripple Rejection: 72dB PSRR at 120Hz ensures clean output for audio and precision analog circuits.
- High Output Current: 3A capability supports power-hungry digital loads and multiple ICs.
- Low Dropout: 1.3V dropout at 3A enables efficient regulation from 2.8V input sources.
- Robust Package: TO-220-3 with tab for heatsinking ensures reliable thermal management.
Low-Voltage Microprocessor Cores
Delivers a stable 1.5V supply at up to 3A for modern DSPs, FPGAs, and microprocessors that require tight voltage regulation for core logic.
High-Performance Audio Equipment
The 72dB PSRR at 120Hz effectively filters mains hum, making it ideal for analog audio circuits, DACs, and preamplifiers needing a clean 1.5V reference.
Post-Regulation for Switching Supplies
Place after a buck converter to reduce output ripple and noise, providing a low-noise 1.5V rail for sensitive mixed-signal systems.
Industrial Sensor Interfaces
Regulates 1.5V for precision sensor bridges and signal conditioning circuits, ensuring accurate measurements in noisy factory environments.
Telecom Line Cards
Provides reliable 1.5V power for line driver ICs and transceivers in telecom infrastructure, with thermal shutdown protection for safety.
Battery-Powered Instruments
With low dropout and high current, it efficiently powers 1.5V logic from a 3V or 3.6V battery, extending operational life.
- Q: What is the output voltage?
- A: The LT1587CT-1.5 provides a fixed 1.5V output.
- Q: What is the maximum output current?
- A: It can supply up to 3A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; consult the datasheet for limits.
- Q: What is the dropout voltage?
- A: Dropout is 1.3V at a 3A load.
- Q: What is the PSRR performance?
- A: It offers 72dB ripple rejection at 120Hz.
- Q: What package is available?
- A: It comes in a TO-220-3 through-hole package.
- Q: What is the output voltage?
- A: The LT1587CT-1.5 provides a fixed 1.5V output.
- Q: What is the maximum output current?
- A: It can supply up to 3A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; consult the datasheet for limits.
- Q: What is the dropout voltage?
- A: Dropout is 1.3V at a 3A load.
- Q: What is the PSRR performance?
- A: It offers 72dB ripple rejection at 120Hz.
- Q: What package is available?
- A: It comes in a TO-220-3 through-hole package.

LT1587CT-1.5#PBF.pdf