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- Model
- LP2985
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- Industrial
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- Last added
- 2012-05-09
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National Semiconductor LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors datasheet
The LP2985 is a 150 mA fixed‑output voltage regulator designed for battery‑powered applications. It provides ultra low‑dropout (typically 300 mV at 150 mA) and low output noise, and it remains stable with output capacitor ESR as low as 5 mΩ, allowing the use of ceramic capacitors.
The device is offered in SOT‑23 and micro‑SMD (5‑bump) packages, supports a wide supply range (2.5 V to 16 V), and includes features such as over‑temperature/over‑current protection, a shutdown pin with <1 µA quiescent current, and 1 % output‑voltage tolerance (A‑grade). Ordering information, pin descriptions, and mechanical dimensions are provided for each package variant.
National Semiconductor LP2985 specifications
| Dropout Voltage (150 mA load) | 300 mV typical |
|---|---|
| Ground Pin Current (150 mA load) | 850 pA typical |
| Output Voltage Accuracy | 1 % (A‑grade) |
| Output Noise (with 10 nF bypass) | 30 pV typical |
| Supply Voltage Range (Operating) | 2.5 V to 16 V |
| Maximum Output Current | 150 mA |
All National Semiconductor LP2985 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- National Semiconductor LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors datasheet 21 p
- NATIONAL SEMICONDUCTOR - LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors handbook 22 p
- NATIONAL SEMICONDUCTOR LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 micro SMD Packages Designed for Use with Very Low ESR Output Capacitors handbook 22 p
Questions answered in these manuals
What is the typical dropout voltage at a 150 mA load?
The typical dropout voltage is 300 mV at a 150 mA load.
What output‑voltage tolerance is available for the LP2985?
The regulator offers a 1 % tolerance output voltage (A‑grade).
What is the dropout voltage of the LP2985 at 150 mA load?
The typical dropout voltage is 300 mV at a 150 mA load.
How much ground pin current does the LP2985 draw at 150 mA load?
It draws typically 850 pA of ground pin current at a 150 mA load.
What is the typical dropout voltage of the LP2985?
The LP2985 typically has a dropout voltage of 300 mV at a 150 mA load.
How low is the quiescent current in sleep mode?
In sleep mode the LP2985 draws less than 1 pA of quiescent current when the ON/OFF pin is pulled low.