| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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6,686 pcs
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6686 pcs | On Request | 1 | On Request | On Request | 12+ | On Request | On Request | |
|
105 pcs
|
105 pcs | On Request | 1 | On Request | On Request | 0812+ | On Request | On Request |
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The Texas Instruments LP3991TL-1.2/NOPB is a fixed 1.2V low dropout linear regulator designed for applications requiring stable output voltages up to 300mA. It operates from an input voltage range of 1.65V to 4V and offers a typical dropout voltage of 125mV at 300mA load.
Key electrical features include a low quiescent current of 50µA at 1mA load, controlled inrush current to 600mA, and a Power Supply Rejection Ratio (PSRR) of 65dB at 1kHz. The device includes thermal-overload and short-circuit protection for enhanced reliability.
This LDO regulator is designed for stability with ceramic capacitors as small as 0402 case size. It is available in a compact 4-DSBGA (1x1) surface mount package, making it suitable for space-constrained designs. The enable (EN) pin allows for control, providing a shutdown state with negligible supply current draw.
Applications include post DC-DC regulation, battery-operated devices, and hand-held information appliances where accurate low voltages are required from low input voltage sources.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.28 | $0.28 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The LP3991TL-1.2/NOPB provides a fixed output voltage of 1.2V.
This regulator can supply a maximum output current of 300mA.
The LP3991 operates from an input voltage range of 1.65V to 4V.
The typical dropout voltage is 125mV at a 300mA load.
Yes, it includes thermal-overload and short-circuit protection.
It is available in a 4-DSBGA (1x1) surface mount package.
The operating temperature range is -40°C to 125°C.