Texas Instruments LMS1587CS-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.08 | $3.08 |
| 15+ | $2.98 | $44.70 |
| 25+ | $2.92 | $73.00 |
| 50+ | $2.75 | $137.50 |
| 100+ | $2.43 | $243.00 |
| N+ | $0.49 | 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) | 13V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 11.7V |
| Voltage Dropout (Max) | 1.3V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 7 mA |
| Current - Supply (Max) | 13 mA |
| PSRR | 72dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°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) |
The LMS1587CS-ADJ/NOPB from Texas Instruments is a high-current adjustable low dropout regulator, delivering up to 3A. With a reference voltage of 1.25V and output adjustable to 11.7V, it provides exceptional flexibility for demanding power applications. The 1.3V dropout at full load and 72dB PSRR at 120Hz ensure stable, clean output. Packaged in a TO-263 (DDPAK-3), this LDO is designed for efficient thermal management in high-power systems.
- High Output Current: 3A capability supports power-hungry loads like FPGAs and processors.
- Wide Adjustable Range: Output from 1.25V to 11.7V covers many standard voltage rails.
- Excellent Ripple Rejection: 72dB PSRR at 120Hz ensures clean power for audio and precision circuits.
- Robust Thermal Package: TO-263 package dissipates heat effectively for reliable operation.
High-Current Post-Regulation
With 3A output capability, this LDO is perfect for regulating the output of a 5V switching supply down to a clean 3.3V or adjustable voltage for digital loads.
Bench Power Supplies
The adjustable output up to 11.7V and high current make it suitable for DIY and lab power supplies requiring precise voltage control.
Battery Chargers for High-Capacity Cells
3A current allows fast charging of large Li-ion or lead-acid batteries, with the adjustable output setting the correct charge voltage.
Audio Amplifier Rails
The low noise and high PSRR (72dB at 120Hz) provide clean power for audio amplifiers, reducing hum and improving sound quality.
Industrial Motor Controllers
For logic and control circuits in motor drives, the LMS1587 provides a stable, high-current rail that can handle transient loads.
Telecom and Networking Equipment
Routers and switches require multiple voltage rails. This LDO can supply 3.3V or 5V at 3A for line cards and processors.
- Q: What is the output voltage range of the LMS1587CS-ADJ/NOPB?
- A: It is adjustable, with a reference voltage of 1.25V, allowing output up to 11.7V.
- Q: What is the maximum output current?
- A: The maximum output current is 3A.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.25V up to 13V (typical).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.3V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 7 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-3) package.
- Q: What is the output voltage range of the LMS1587CS-ADJ/NOPB?
- A: It is adjustable, with a reference voltage of 1.25V, allowing output up to 11.7V.
- Q: What is the maximum output current?
- A: The maximum output current is 3A.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.25V up to 13V (typical).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.3V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 7 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-3) package.

LMS1587CS-ADJ/NOPB.pdf