Texas Instruments LM1117SX-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.41 | $1.41 |
| 15+ | $1.36 | $20.40 |
| 25+ | $1.33 | $33.25 |
| 50+ | $1.26 | $63.00 |
| 100+ | $1.11 | $111.00 |
| N+ | $0.22 | 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 | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 13.8V |
| Voltage Dropout (Max) | 1.2V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 5 mA |
| Current - Supply (Max) | 10 mA |
| PSRR | 75dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |
The LM1117SX-ADJ/NOPB from Texas Instruments is a versatile adjustable low dropout linear regulator capable of delivering up to 800mA. With a reference voltage of 1.25V, it can be set to output voltages up to 13.8V using external resistors. Its low dropout of 1.2V and excellent PSRR of 75dB at 120Hz make it ideal for post-regulation and noise-sensitive applications. Packaged in a TO-263 (DDPAK-3), it offers robust thermal performance.
- Adjustable Output: Flexible voltage setting from 1.25V to 13.8V using two resistors.
- High Current: 800mA output supports a wide range of loads.
- Excellent Low-Frequency PSRR: 75dB at 120Hz eliminates mains hum.
- Robust Package: TO-263 ensures good heat dissipation.
- Proven Technology: Industry-standard LM1117 architecture.
Adjustable Power Supplies
The LM1117SX-ADJ/NOPB's adjustable output (up to 13.8V) makes it ideal for bench power supplies and custom voltage rails in prototyping.
Post-Regulation for Switching Converters
Its low noise and 75dB PSRR at 120Hz make it perfect for cleaning up ripple from DC-DC converters in audio and precision analog circuits.
Battery Chargers
With 800mA capability, it can be used in simple linear battery chargers for lead-acid or lithium batteries, providing a stable charging voltage.
Industrial Control Boards
Its robust TO-263 package handles thermal stress, making it suitable for industrial PLCs and motor control boards requiring a stable adjustable supply.
Audio Equipment
The high PSRR at low frequencies ensures hum-free power for audio preamplifiers and DACs, enhancing sound quality.
Telecom Line Cards
It provides a clean adjustable voltage for line drivers and interface circuits, ensuring reliable data transmission.
- Q: What is the output voltage of the LM1117SX-ADJ/NOPB?
- A: It is adjustable, with a reference voltage of 1.25V, allowing output up to 13.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.25V above the desired output, typically up to 15V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA, which is typical for this type of regulator.
- Q: What is the package type?
- A: It comes in a TO-263 (DDPAK-3) package, suitable for surface-mount applications.
- Q: What is the output voltage of the LM1117SX-ADJ/NOPB?
- A: It is adjustable, with a reference voltage of 1.25V, allowing output up to 13.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.25V above the desired output, typically up to 15V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA, which is typical for this type of regulator.
- Q: What is the package type?
- A: It comes in a TO-263 (DDPAK-3) package, suitable for surface-mount applications.

LM1117SX-ADJ/NOPB.pdf