Texas Instruments LM2991S/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.00 | $4.00 |
| 15+ | $3.87 | $58.05 |
| 25+ | $3.79 | $94.75 |
| 50+ | $3.58 | $179.00 |
| 100+ | $3.16 | $316.00 |
| N+ | $0.63 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Negative |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | -26V |
| Voltage - Output (Min/Fixed) | -3V |
| Voltage - Output (Max) | -24V |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 0.7 mA |
| Current - Supply (Max) | 5 mA |
| PSRR | 60dB (1kHz) |
| Control Features | Enable |
| Protection Features | 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 LM2991S/NOPB from Texas Instruments is an adjustable negative LDO linear regulator offering an output range from -3V to -24V and up to 1A of current. With a low quiescent current of 0.7mA and a dropout voltage of 1V at full load, it delivers efficient, stable negative power. The TO-263 (DDPAK-5) package ensures good thermal performance for industrial, automotive, and test equipment applications.
- Wide Adjustable Range: -3V to -24V output flexibility for diverse applications.
- Low Quiescent Current: 0.7mA improves efficiency in battery-powered designs.
- Good PSRR: 60dB at 1kHz ensures clean output for audio circuits.
- Robust Package: TO-263 package handles thermal demands of 1A loads.
Adjustable Negative Rail for Lab Instruments
The wide -3V to -24V adjustable range makes it perfect for bench power supplies and lab equipment requiring flexible negative voltages.
Audio Amplifier Bias Supplies
Provides a clean, adjustable negative bias for audio preamplifiers and power amplifiers, with 60dB PSRR at 1kHz.
Automotive Display Backlight Drivers
Negative bias is often needed for LCD displays. This LDO provides a stable, adjustable negative rail for display drivers.
Industrial Process Control
Used in PLCs and process control systems to generate negative reference voltages for analog I/O modules.
Telecom Power Distribution
Provides a regulated negative rail for line cards and communication equipment requiring bipolar supplies.
Battery-Powered Test Equipment
The low 0.7mA quiescent current extends battery life in portable multimeters and signal generators.
- Q: What is the output voltage range of the LM2991S/NOPB?
- A: The adjustable output voltage range is from -3V to -24V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the input voltage range?
- A: The input voltage range is from -3V to -26V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 0.7 mA.
- Q: What package is this device available in?
- A: It is available in the TO-263 (DDPAK-5) package.
LM2991S/NOPB.pdf
- Q: What is the output voltage range of the LM2991S/NOPB?
- A: The adjustable output voltage range is from -3V to -24V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the input voltage range?
- A: The input voltage range is from -3V to -26V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 0.7 mA.
- Q: What package is this device available in?
- A: It is available in the TO-263 (DDPAK-5) package.
