SO-8

Features

Symbol

Parameter

Values

VS

Max DC supply voltage

40 V

ΔVO

Max output voltage tolerance

± 2%

Vdp

Max dropout voltage

500 mV

IO

Output current

50 mA (1)

2x50 mA (2)

Iqn

Quiescent current

50 µA (3)

1. For L5050S - single output. Up to 100 mA as pulsed current

2. For L5050SD - dual output. Up to 2x100 mA as pulsed current.

3. Typical value valid for each single output with En = LOW.

•

AEC-Q100 qualified

•

Operating DC supply voltage range 5.6 V to 40 V

•

Low dropout voltage

•

Low quiescent current consumption

•

Up to 100 mA and 2x100 mA as pulsed current

•

Precision output voltage 5 V ± 2%

•

Dual electrically isolated voltage regulators (only for L5050SD)

•

Enable input for enabling/disabling the voltage regulator

•

Thermal shutdown and short circuit protection

•

Wide temperature range (TJ = -40 °C to 150 °C)

Description

L5050 is a 5 V low dropout linear voltage regulator suitable for automotive

applications, available in single (L5050S) or dual isolated (L5050SD) linear output

voltage in a SO-8 package. The LDO delivers up to 50 mA (2x50 mA for the dual

version) of DC load current and consumes as low as 5 μA (per each output in

L5050SD) of quiescent current with device disabled. High output voltage accuracy (±

2%) is kept over wide temperature range, line and load variation. The L5050S is able

to deliver up to 100 mA (as pulsed current) and L5050SD up to 2x100 mA (as pulsed

current); duration of current is linked to thermal settings (such as PCB type, ambient

temperature). Enable features (two enables for the dual version) allow enabling or

disabling each output. The maximum input voltage is 40 V. The regulator output

current is internally limited and the device is protected against short circuit, overload

and over temperature conditions. In addition, only low value ceramic capacitor on

output is required for stability.

Product status link

L5050

Product summary

Order code

L5050STR

L5050SDTR

Package

SO-8

Packing

Tape and reel

Single and dual isolated 5 V low drop linear voltage regulators

for automotive application

L5050

Datasheet

DS13704 - Rev 3 - July 2022

For further information contact your local STMicroelectronics sales office.

www.st.com