LP2980LV datasheet(9/14 Pages) NSC

Part #	LP2980LV

Description	Micropower SOT, 50 mA Low-Voltage Low-Dropout Regulator For Applications With Output Voltages < 2V

Download	14 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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9 / 14 page

Typical Performance Characteristics Unless otherwise specified: T

A = 25˚C, COUT = 4.7 µF,

CIN = 1µF, ON/OFF pin tied to VIN,VIN =VO(NOM) + 1V, VOUT(NOM) = 1.8V. (Continued)

Ripple Rejection

Input to Output Leakage vs

Temperature

10109112

10109130

Output Reverse Leakage vs

Temperature

Turn-On Waveform

10109131

10109116

Turn-Off Waveform

ON/OFF Pin current vs V

ON/OFF

10109117

10109132

Application Hints

INPUT CAPACITOR

An input capacitor whose capacitance is

≥ 1 µF is required

between the LP2980 input pin and ground (the amount of

capacitance may be increased without limit).

The input capacitor must be located a distance of not more

than 1 cm away from the input pin and returned to a clean

analog ground. Any good quality ceramic, Tantalum, or film

capacitor may be used at the input.

IMPORTANT: Tantalum capacitors may suffer catastrophic

failure due to surge current when connected to a low-

impedance source of power (like a battery or very large

www.national.com

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LP2980LV Datasheet(PDF) 9 Page - National Semiconductor (TI)

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