LD39050 datasheet(16/28 Pages) STMICROELECTRONICS

No de pièce	LD39050

Description	500 mA low quiescent current and low noise voltage regulator

PDF	28 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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16 / 28 page

Application information

LD39050

16/28

DocID15470 Rev 3

Application information

The LD39050 is an ultra low-dropout linear regulator. It provides up to 500 mA with a

200 mV dropout. The input voltage range is from 1.5 V to 5.5 V. The device is available in

fixed and adjustable output versions.

The regulator is equipped with internal protection circuitry, such as short-circuit current

limiting and thermal protection.

The regulator is designed to be stable with ceramic capacitors on the input and the output.

The recommended values of the input and output ceramic capacitors are from 1 µF to 22 µF

with 1 µF typical. The input capacitor must be connected within 0.5 inches of the VIN

terminal. The output capacitor must also be connected within 0.5 inches of output pin. There

is no upper limit to the value of the input capacitor.

Figure 35 and Figure 36 illustrate the typical application schematics:

Figure 35. Application schematic for fixed version

LD39050 Fiches technique(PDF) 16 Page - STMicroelectronics