Texas Instruments LP38690DT-2.5/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) | 2.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.3V @ 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-2.5/NOPB is a fixed 2.5V low-dropout linear regulator from Texas Instruments, capable of delivering up to 1A of output current. Housed in a compact TO-252-3 package, it features a low quiescent current of 55µA and a dropout voltage of just 1.3V at full load. With 55dB of PSRR at 120Hz, it provides clean, stable power for noise-sensitive applications. This regulator is ideal for battery-powered devices, automotive electronics, and industrial control systems where efficiency and reliability are critical.
- Extended Battery Life: Ultra-low 55µA quiescent current reduces standby drain in portable devices.
- High Current Capacity: 1A output capability supports power-hungry digital loads like FPGAs and processors.
- Low Dropout Voltage: 1.3V dropout at 1A allows operation from nearly depleted batteries.
- Excellent Ripple Rejection: 55dB PSRR at 120Hz filters mains-frequency noise for clean analog supplies.
- Robust Thermal Package: TO-252-3 DPAK package dissipates heat efficiently for reliable operation.
High-Efficiency Point-of-Load Regulation
The LP38690DT-2.5/NOPB provides a stable 2.5V rail from a 3.3V or 5V supply, ideal for powering DSPs, FPGAs, and microcontrollers in industrial control systems. Its low 55µA quiescent current minimizes standby power consumption.
Battery-Powered Portable Devices
With a low dropout of 1.3V at 1A, this regulator maximizes battery life in handheld instruments and medical devices by allowing the battery to discharge deeper before the output drops out of regulation.
Automotive Infotainment Systems
The TO-252 package offers excellent thermal dissipation for under-hood or dashboard applications. The 55dB PSRR at 120Hz effectively rejects alternator ripple, ensuring clean power for audio codecs and display drivers.
Networking and Telecom Equipment
For 5G small cells and routers, the LP38690 provides a low-noise 2.5V supply for SerDes transceivers and PHY chips, reducing bit-error rates in high-speed data links.
Post-Regulation for Switching Converters
Use this LDO after a buck converter to attenuate switching noise. The 55dB PSRR at 120Hz and low output noise make it suitable for precision analog front-ends in data acquisition systems.
LED Driver Bias Supply
In automotive lighting, the LP38690 can bias LED driver ICs with a clean 2.5V rail, ensuring consistent brightness and color temperature across temperature extremes.
- Q: What is the output voltage of the LP38690DT-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- 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 2.5V up to 10V (not explicitly stated, but typical for this family; verify with datasheet).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.3V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 55 µA.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
LP38690DT-2.5/NOPB.pdf
- Q: What is the output voltage of the LP38690DT-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- 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 2.5V up to 10V (not explicitly stated, but typical for this family; verify with datasheet).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.3V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 55 µA.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
