Texas Instruments LP38843SX-1.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.91 | $3.91 |
| 15+ | $3.79 | $56.85 |
| 25+ | $3.71 | $92.75 |
| 50+ | $3.50 | $175.00 |
| 100+ | $3.09 | $309.00 |
| N+ | $0.62 | 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) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.5V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 30 µA |
| Current - Supply (Max) | 40 mA |
| PSRR | 80dB ~ 65dB (120Hz ~ 1kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263 (DDPAK-5) |
| ROHS |  |
The Texas Instruments LP38843SX-1.5/NOPB is a high-current, low-dropout linear regulator designed for demanding applications requiring a precise 1.5V output. Capable of delivering up to 3A, this LDO maintains excellent stability with a dropout voltage of just 0.5V at full load. Its ultra-low 30 µA quiescent current makes it suitable for battery-operated devices, while the high PSRR (80dB at 120Hz) ensures clean power for noise-sensitive circuits. Housed in a TO-263 (DDPAK-5) package, it offers superior thermal dissipation for continuous high-current operation.
- High Current Capacity: Delivers up to 3A, suitable for powering modern digital cores and processors.
- Ultra-Low Quiescent Current: 30 µA quiescent current significantly extends battery life in portable applications.
- Excellent PSRR: 80dB at 120Hz and 65dB at 1kHz provides clean, stable output for sensitive analog and RF circuits.
- Low Dropout Voltage: 0.5V dropout at 3A allows efficient operation from lower input rails, reducing power loss.
High-Current FPGA and DSP Core Supplies
The LP38843SX-1.5/NOPB delivers a stable 1.5V rail at up to 3A, making it ideal for powering the core voltage of high-performance FPGAs and DSPs that require tight voltage regulation under dynamic load conditions.
Point-of-Load (POL) Conversion
With its low dropout of 0.5V at 3A, this LDO can efficiently regulate from a 2.0V or 2.5V intermediate bus down to 1.5V, minimizing power dissipation in space-constrained POL applications.
Noise-Sensitive Analog Circuits
The high PSRR of 80dB at 120Hz and 65dB at 1kHz ensures clean, ripple-free power for sensitive analog front-ends, ADCs, and precision reference circuits.
Battery-Powered Industrial Equipment
The ultra-low 30 µA quiescent current extends battery life in portable industrial sensors and handheld instruments, while the 3A capability supports burst-mode operation.
Automotive Infotainment Processors
This regulator provides a robust 1.5V supply for automotive infotainment SoCs, with the TO-263 package offering excellent thermal performance for under-hood or dashboard environments.
Networking and Telecom Line Cards
For networking equipment requiring a stable 1.5V core supply, the LP38843SX-1.5/NOPB offers high current capability and low noise, ensuring reliable operation of high-speed SerDes and switch fabrics.
- Q: What is the output voltage of the LP38843SX-1.5/NOPB?
- A: The fixed output voltage is 1.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.5V (output voltage) up to 5.5V maximum.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.5V at a 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 30 µA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
LP38843SX-1.5/NOPB.pdf
- Q: What is the output voltage of the LP38843SX-1.5/NOPB?
- A: The fixed output voltage is 1.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.5V (output voltage) up to 5.5V maximum.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.5V at a 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 30 µA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
