Texas Instruments LP38690DT-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.96 | $1.96 |
| 15+ | $1.90 | $28.50 |
| 25+ | $1.85 | $46.25 |
| 50+ | $1.75 | $87.50 |
| 100+ | $1.55 | $155.00 |
| N+ | $0.31 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 10V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.6V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 55 µA |
| Current - Supply (Max) | 100 µA |
| PSRR | 55dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| 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 Texas Instruments LP38690DT-1.8/NOPB is a robust low dropout linear regulator designed to deliver a fixed 1.8V output with up to 1A of continuous current. It features a low quiescent current of 55µA and a dropout voltage of 1.6V at full load. The device offers excellent power supply rejection of 55dB at 120Hz, making it suitable for noise-sensitive applications. Housed in a TO-252-3 package, this LDO provides reliable thermal performance for demanding industrial and automotive environments.
- High Output Current: 1A capability supports power-hungry digital loads like FPGAs and processors.
- Excellent Ripple Rejection: 55dB PSRR at 120Hz ensures clean output for sensitive circuits.
- Robust Thermal Package: TO-252-3 package efficiently dissipates heat in high-current applications.
- Low Quiescent Current: 55µA quiescent current improves efficiency in always-on systems.
High-Current Digital Loads
With a 1A output capability, this regulator is ideal for powering FPGAs, DSPs, and high-performance microcontrollers that require a stable 1.8V core supply.
Industrial Control Systems
The TO-252-3 package provides excellent thermal performance for industrial applications where reliability and heat dissipation are critical. The 55dB PSRR at 120Hz helps reject mains ripple.
Networking Equipment
For routers and switches, the LP38690DT-1.8 delivers clean 1.8V power to high-speed ASICs and PHY transceivers, ensuring signal integrity and stable operation.
Automotive Infotainment
This regulator can power 1.8V logic rails in car infotainment systems, providing robust performance with the TO-252 package's superior thermal handling.
Test and Measurement Instruments
The low quiescent current of 55µA and high output current make it suitable for bench instruments that need both efficiency and high current capability for various test circuits.
- Q: What is the output voltage of the LP38690DT-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.6V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 55 µA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 55dB at 120Hz.
LP38690DT-1.8/NOPB.pdf
- Q: What is the output voltage of the LP38690DT-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.6V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 55 µA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 55dB at 120Hz.
