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National LP2980 Micropower 50 mA Ultra Low‑Dropout Regulator Datasheet
The LP2980 micropower regulator is designed for battery‑powered applications such as cellular phones, PDAs and cameras. It offers a typical dropout of 120 mV at 50 mA, 0.5 % output voltage tolerance, and less than 1 µA quiescent current in shutdown mode.
The device is available in SOT‑23 and micro‑SMD packages, requires only 1 µF of external output capacitance, and supports output currents up to 150 mA peak. It operates from 2.1 V to 16 V input and across a temperature range of –40 °C to +125 °C.
National Semiconductor LP2980 specifications
| Dropout Voltage (typical @50 mA) | 120 mV |
|---|---|
| Ground Pin Current (typical @50 mA) | 375 µA |
| Sleep Mode Quiescent Current | <1 µA |
| Output Voltage Tolerance | 0.5 % |
| Required External Output Capacitance | 1 µF |
| Maximum Input Voltage (Operating) | 2.1 V to 16 V |
| Operating Temperature Range | –40 °C to +125 °C |
Source: National LP2980 Micropower 50 mA Ultra Low‑Dropout Regulator Datasheet
All National Semiconductor LP2980 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical dropout voltage at 50 mA load?
The typical dropout voltage is 120 mV at a 50 mA load.
From: National LP2980 Micropower 50 mA Ultra Low‑Dropout Regulator Datasheet
How much external capacitance is required for regulator stability?
Only 1 µF of external output capacitance is required.
From: National LP2980 Micropower 50 mA Ultra Low‑Dropout Regulator Datasheet
What is the typical dropout voltage of the LP2980?
The typical dropout voltage is 120 mV at a 50 mA load.
How much output current can the LP2980 provide?
The LP2980 guarantees a maximum output current of 50 mA.
What is the typical dropout voltage of the LP2980 at a 50 mA load?
The typical dropout voltage is 120 mV when the device is delivering 50 mA.
From: National Semiconductor LP2980 Micropower 50 mA Ultra Low-Dropout Regulator Datasheet
How much current does the LP2980 draw in sleep mode?
In sleep mode, the regulator draws less than 1 µA when the ON/OFF pin is pulled low.
From: National Semiconductor LP2980 Micropower 50 mA Ultra Low-Dropout Regulator Datasheet