Features

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Input voltage from 0.8 to 5.5 V

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Bias supply pin

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Ultra low-dropout voltage (80 mV typ. at 500 mA load)

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Low ground current (27 μA typ. at no-load)

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Output voltage tolerance: ± 1.5% overtemperature, 0.5% at 25 °C

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500 mA guaranteed output current

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50 mV output voltage step available from 0.8 V to 3.6 V

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Logic-controlled electronic shutdown

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Internal current limit with foldback

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Thermal shutdown

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Output active discharge function

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Available in DFN4 1.2 x 1.2 mm package

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Temperature range: -40 °C to 85 °C

Applications

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Mobile phones

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Tablets

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Battery-powered systems

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Camera supply

Description

The LD56050 is a high accuracy voltage regulator, which provides 0.5 A of current. It

is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin,

thus allowing an ultra low-drop performance even at very low input voltages.

It is available in DFN4 1.2 x 1.2 package, allowing the maximum space saving.

The device is stabilized with a small ceramic capacitor on the output. The ultra low-

drop, low quiescent current and short circuit current foldback make the LD56050

suitable for low power battery-operated applications.

An enable logic control function puts the LD56050 in shutdown mode allowing a total

current consumption lower than 0.1 µA. Thermal protection is also included.

Maturity status link

LD56050

500 mA ultra-low dropout linear regulator with bias supply

LD56050

Datasheet

DS12441 - Rev 2 - April 2018

For further information contact your local STMicroelectronics sales office.

www.st.com