Texas Instruments LM1117S-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 15+ | $1.41 | $21.15 |
| 25+ | $1.38 | $34.50 |
| 50+ | $1.30 | $65.00 |
| 100+ | $1.15 | $115.00 |
| N+ | $0.23 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| 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 LM1117S-ADJ/NOPB from Texas Instruments is an adjustable linear regulator capable of delivering up to 800mA. With an output range up to 13.8V and a low dropout of 1.2V, it offers design flexibility. Its 75dB PSRR ensures excellent ripple rejection, making it a robust choice for noise-sensitive applications.
- Adjustable Output: Output voltage can be set from 1.25V to 13.8V with two external resistors, offering design flexibility.
- High Current Capability: 800mA output current supports a wide range of loads, from microcontrollers to analog circuits.
- Low Dropout Voltage: 1.2V dropout at full load improves efficiency and extends battery life in portable designs.
- Excellent Ripple Rejection: 75dB PSRR at 120Hz ensures clean, stable power for sensitive audio and RF applications.
Post-Regulation for Switching Supplies
With 75dB PSRR at 120Hz, it effectively filters switching noise from DC-DC converters, providing a clean analog supply rail.
Battery-Powered Equipment
The low dropout of 1.2V maximizes battery life by allowing operation close to the battery's end-of-discharge voltage.
High-Efficiency Linear Power Supplies
Its 800mA current capability and adjustable output make it suitable for bench power supplies and lab equipment requiring a stable, adjustable rail.
Audio Equipment
The high PSRR and low noise characteristics make it ideal for powering audio DACs, op-amps, and preamplifiers where clean power is critical.
Industrial Control Systems
Provides a reliable, adjustable voltage for microcontrollers, sensors, and communication interfaces in industrial environments.
Networking Hardware
Used in routers and switches to generate clean, stable voltages for PHY chips and processors, ensuring reliable data transmission.
- Q: What is the output voltage of the LM1117S-ADJ/NOPB?
- A: It is an adjustable regulator with an output voltage range up to 13.8V, set by external resistors.
- Q: What is the maximum output current?
- A: The maximum output current is 800mA.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.25V above the desired output voltage.
- 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 5mA.
- Q: What package is available?
- A: It comes in the TO-263 (DDPAK-3) package.
- Q: What is the output voltage of the LM1117S-ADJ/NOPB?
- A: It is an adjustable regulator with an output voltage range up to 13.8V, set by external resistors.
- Q: What is the maximum output current?
- A: The maximum output current is 800mA.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.25V above the desired output voltage.
- 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 5mA.
- Q: What package is available?
- A: It comes in the TO-263 (DDPAK-3) package.

LM1117S-ADJ/NOPB.pdf