Texas Instruments LP38690SD-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.50 | $1.50 |
| 15+ | $1.45 | $21.75 |
| 25+ | $1.42 | $35.50 |
| 50+ | $1.34 | $67.00 |
| 100+ | $1.19 | $119.00 |
| N+ | $0.24 | 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) | 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 | 6-WDFN Exposed Pad |
| Supplier Device Package | 6-WSON (3x3) |
| ROHS |  |
The LP38690SD-1.8/NOPB from Texas Instruments is a high-performance 1A low dropout linear regulator with a fixed 1.8V output. Its standout feature is an ultra-low quiescent current of just 55 µA, making it ideal for battery-powered applications. The 1.6V dropout at full load ensures efficient operation. Housed in a compact 6-WSON package, it is designed for space-constrained designs.
- Ultra-Low Quiescent Current: 55 µA quiescent current significantly extends battery life in portable devices.
- Compact Footprint: 6-WSON (3x3) package saves valuable PCB space.
- Stable 1.8V Output: Provides a precise and stable voltage rail for sensitive digital and analog circuits.
- Low Dropout: 1.6V dropout at 1A allows operation with minimal headroom.
Battery-Powered IoT Devices
The ultra-low 55 µA quiescent current extends battery life in wireless sensors, beacons, and wearables that require a stable 1.8V rail for microcontrollers and RF transceivers.
Portable Medical Monitors
With a small 6-WSON package and low dropout, this regulator is perfect for compact medical devices like glucose meters and pulse oximeters, ensuring reliable 1.8V power.
FPGA and DSP Core Supplies
Modern FPGAs and DSPs often need a precise 1.8V core voltage. The LP38690 provides clean, stable power with fast transient response.
Noise-Sensitive Audio Codecs
The 55dB PSRR at 120Hz helps filter power supply noise, making it suitable for powering audio codecs and DACs in portable players.
Automotive Infotainment Backup
For always-on systems in vehicles, the low quiescent current helps minimize battery drain while maintaining a constant 1.8V supply for standby circuits.
- Q: What is the output voltage?
- A: The LP38690SD-1.8/NOPB provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: It can supply up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.8V (output voltage) and can go higher, with a dropout of 1.6V at 1A.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.6V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 55 µA.
- Q: What package is available?
- A: It is available in a 6-WSON (3x3) package.
LP38690SD-1.8/NOPB.pdf
- Q: What is the output voltage?
- A: The LP38690SD-1.8/NOPB provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: It can supply up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.8V (output voltage) and can go higher, with a dropout of 1.6V at 1A.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.6V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 55 µA.
- Q: What package is available?
- A: It is available in a 6-WSON (3x3) package.
