Texas Instruments LP38690SD-5.0/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) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.8V @ 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-5.0/NOPB is a fixed 5V low dropout linear regulator from Texas Instruments, delivering up to 1A. With a low 55 µA quiescent current and 0.8V dropout, it is optimized for battery-powered and industrial applications. The 6-WSON (3x3) package offers a compact solution with good thermal characteristics. Its 55dB PSRR at 120Hz ensures effective ripple rejection for stable output.
- Low Power Consumption: 55 µA quiescent current extends battery life in standby and active modes.
- High Output Current: 1A capability supports a wide range of loads, from sensors to small motors.
- Low Dropout Voltage: 0.8V at 1A enables efficient operation from a 5.8V input.
- Compact Package: 6-WSON (3x3) saves PCB space while providing adequate thermal performance.
Wireless Transceiver Power
The 1A output and 55dB PSRR ensure clean 5V supply for RF power amplifiers, reducing spurious emissions in LoRa and Zigbee modules.
Smart Home Hubs
Stable 5V rail for Zigbee/Wi-Fi co-processors, with low quiescent current for always-on standby modes.
Test and Measurement Equipment
Low noise output (55dB PSRR) preserves signal integrity in multimeters and oscilloscope front-ends.
LED Lighting Controllers
Provides regulated 5V for PWM dimming microcontrollers, with 1A headroom for driving indicator LEDs.
Portable Audio DACs
Clean 5V supply for audio codecs, minimizing power-supply-induced noise in headphone amplifiers.
Security Cameras
Reliable 5V for image sensors and IR LEDs, with thermal package for continuous operation.
- Q: What is the output voltage of the LP38690SD-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- 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 5.5V up to 10V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.8V 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.
- Q: What is the output voltage of the LP38690SD-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- 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 5.5V up to 10V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.8V 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-5.0/NOPB.pdf