Features

• 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.

L5050STR属于集成电路（IC） > 线性 + 开关稳压器。意法半导体（ST）集团制造生产的L5050STR稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。