Texas Instruments LP38690SD-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.77 | $1.77 |
| 15+ | $1.71 | $25.65 |
| 25+ | $1.67 | $41.75 |
| 50+ | $1.58 | $79.00 |
| 100+ | $1.40 | $140.00 |
| N+ | $0.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | 6-WDFN Exposed Pad |
| Supplier Device Package | 6-WSON (3x3) |
| ROHS |  |
The LP38690SD-3.3/NOPB is a fixed 3.3V low dropout linear regulator from Texas Instruments, capable of delivering 1A. Its low 55 µA quiescent current and 1V dropout at full load make it suitable for battery-operated and industrial applications. The 6-WSON (3x3) package provides a compact footprint with excellent thermal performance. With 55dB PSRR at 120Hz, it effectively filters input ripple, ensuring a clean and stable output rail.
- Efficient Power Conversion: 3.3V output from 5V rail with only 1V dropout, minimizing power loss.
- Low Quiescent Current: 55 µA extends battery life in portable and standby applications.
- High Current Capability: 1A output supports demanding digital loads.
- Compact Thermal Package: 6-WSON with exposed pad for efficient heat dissipation.
Microcontroller Core Supply
3.3V output with 1A capacity powers modern MCUs and their peripherals, with low dropout for 5V to 3.3V conversion.
FPGA I/O Banks
Provides stable 3.3V for FPGA I/O, with 55dB PSRR to minimize digital switching noise.
Industrial Sensors
Regulated 3.3V for pressure and temperature sensors, ensuring accurate analog readings in noisy environments.
Portable Instruments
Low quiescent current extends battery life in handheld multimeters and data loggers.
Automotive ECUs
Reliable 3.3V for engine control modules, with thermal package for under-hood temperatures.
Wireless Modules
Clean 3.3V for BLE and Wi-Fi modules, reducing RF interference and improving range.
- Q: What is the output voltage of the LP38690SD-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 from 4.3V up to 10V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 55 µA, ideal for battery-powered devices.
- Q: What package is available?
- A: It comes in a 6-WSON (3x3) package.
LP38690SD-3.3/NOPB.pdf
- Q: What is the output voltage of the LP38690SD-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 from 4.3V up to 10V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 55 µA, ideal for battery-powered devices.
- Q: What package is available?
- A: It comes in a 6-WSON (3x3) package.
