Texas Instruments LP38690DT-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.40 | $4.40 |
| 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) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1V @ 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 LP38690DT-3.3/NOPB is a fixed 3.3V low dropout linear regulator capable of delivering up to 1A of output current. Its ultra-low 55 µA quiescent current makes it an excellent choice for battery-operated equipment. The device offers a dropout voltage of just 1V at full load, ensuring efficient operation even with low input margins. Housed in a compact TO-252-3 package, it provides reliable, low-noise power with 55dB ripple rejection at 120Hz, ideal for sensitive analog and digital circuits.
- Extended Battery Life: Ultra-low 55 µA quiescent current minimizes standby power draw, ideal for portable devices.
- High Current Capacity: 1A output supports power-hungry loads like FPGAs and wireless modules.
- Low Dropout: 1V dropout at 1A allows operation from marginally higher input voltages, reducing power dissipation.
- Excellent Ripple Rejection: 55dB PSRR at 120Hz ensures clean output for audio and precision analog circuits.
Battery-Powered Industrial Sensors
With a low 55 µA quiescent current and 1A output capability, the LP38690DT-3.3/NOPB efficiently regulates 3.3V rails in remote industrial sensors, extending battery life while powering wireless transceivers.
FPGA and DSP Core Supplies
The 1A current rating and 1V dropout at full load provide a stable 3.3V core supply for FPGAs and DSPs, ensuring reliable operation during peak processing loads.
Automotive Infotainment Modules
Its TO-252-3 package handles thermal dissipation in automotive infotainment systems, delivering clean 3.3V power to microcontrollers and display drivers.
Portable Medical Devices
The low quiescent current and stable output make it ideal for portable medical monitors, where power efficiency and noise-free 3.3V rails are critical for accurate readings.
Networking Equipment
In routers and switches, the LP38690DT-3.3/NOPB provides a robust 3.3V rail for PHY chips and logic circuits, with 55dB PSRR at 120Hz to reject mains ripple.
LED Lighting Controllers
For smart lighting systems, this regulator powers the control MCU and communication modules, maintaining a steady 3.3V even with varying input from battery or solar sources.
- Q: What is the output voltage of the LP38690DT-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 55 µA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) surface-mount package.
LP38690DT-3.3/NOPB.pdf
- Q: What is the output voltage of the LP38690DT-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 55 µA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) surface-mount package.
