| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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10,980 pcs
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10980 pcs | On Request | 1 | On Request | On Request | 13+ | On Request | On Request |
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The Texas Instruments LP3981IMMX-3.3/NOPB is a micropower, 300mA ultra-low-dropout CMOS voltage regulator optimized for battery-powered applications. It offers high accuracy and low quiescent current, with regulator ground current increasing only slightly in dropout to prolong battery life.
Key electrical specifications include a 2.5-V to 6-V input range, a 300mA output current capability, and a typical dropout voltage of 132mV at 300mA load. The device provides excellent power supply rejection ratio (PSRR) of 60dB at 1kHz and features a low quiescent current of less than 1µA when shut down. It also boasts a fast turn-on time of 120µs and low output noise of 35µVrms over a 10Hz to 100kHz bandwidth.
Protection features include over current, over temperature, and short-circuit current limiting. The regulator is controlled via a logic-level enable pin and is stable with ceramic and high-quality tantalum capacitors. The LP3981IMMX-3.3/NOPB is supplied in an 8-VSSOP package, suitable for surface mounting.
This device is designed for applications requiring stable, low-noise power, such as portable electronics, battery-powered devices, and noise-sensitive analog circuits. Its low thermal resistance in the package contributes to excellent power capability.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.39 | $0.39 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2.5V to 6V.
It is available in an 8-VSSOP package.
The operating temperature range is -40°C to 125°C.
The typical output current is 300 mA.
The typical dropout voltage is 132 mV at 300 mA load.
The quiescent current is ≤1 µA when the device is shut down.
It includes over-current, over-temperature, and short-circuit protection.