L4931CD50-TR Linear Voltage Regulator IC Positive Fixed 1 Output 250mA 8-SOIC

L4931CD50-TR Linear Voltage Regulator IC Positive Fixed 1 Output 250mA 8-SOIC

Description

The L4931 is a very low drop regulator availablein SO-8, DPAK, PPAK and TO-92 packages andin a

wide range of output voltages.The very low drop voltage (0.4 V) and the verylow quiescent current

make it particularly suitablefor low noise, low power applications andespecially in battery-powered

systems.A TTL compatible shutdown logic control functionis available in PPAK and SO-8 packages.

This means that when the device is used as a localregulator, a part of the board can be put instandby

mode, decreasing the total powerconsumption. It requires only a 2.2 µF capacitorfor stability allowing

space and cost saving.The L4931 is available as automotive-grade inSO-8 package only. This device

is qualifiedaccording to the specification AEC-Q100 of theautomotive market, in the temperature

rangefrom 40 °C to 125 °C, and the statistical tests:PAT, SYL, SBL are performed.

Features
●Very low dropout voltage (0.4 V)
●Very low quiescent current
●Typ.50 μA in OFF mode, 600 μA in ON mode
●Output current up to 250 mA
●Logic controlled electronic shutdown
●Output voltages: 3.3;3.5; 5; 12 V
●Automotive-grade product: 3.3 V Vout in SO-8 package only
●Internal current and thermal limit
●Only 2.2 μF for stability
●Available in士1 % (AB) or 2 % (C) selectionat 25°C
●Supply voltage rejection: 70 dB typ. for 5 V version
●Temperature range: from -40 to 125 °C

L4931CD50-TR is a part number that refers to a specific voltage regulator manufactured by

STMicroelectronics. 

1. Manufacturer: STMicroelectronics
   STMicroelectronics is a well-known semiconductor company that produces a wide range of

electronic components, including microcontrollers, sensors, power management devices, and

voltage regulators.

1. Part Number: L4931CD50-TR
   The part number L4931CD50-TR specifically refers to a low-dropout (LDO) voltage regulator.

The "L" in the part number indicates that it is from STMicroelectronics' L series of regulators,

known for their low dropout voltage and low quiescent current.

1. Voltage Output: 5.0V
   The "D50" in the part number indicates that the output voltage of this regulator is 5.0 volts.

It means that when supplied with an input voltage within its specified range, the L4931CD50-TR

will provide a stable output voltage of 5.0 volts.

1. Package Type: TO-252 (DPAK)
   The "-TR" in the part number indicates that the package type is a TO-252, also known as a

DPAK (D-Pak). The DPAK is a surface-mount package with three pins, commonly used for

medium-power devices.

1. Features:

   • -Low dropout voltage: The L4931CD50-TR is designed to operate with a very low dropout voltage,
   • allowing it to regulate the output voltage even when the input voltage is only slightly higher than
   • the desired output voltage.
   • -Low quiescent current: It has a low quiescent (or standby) current, which helps conserve power
   • and is beneficial in battery-powered applications.
   • -Overcurrent and thermal protection: The regulator has built-in protection features to safeguard
   • against overcurrent and excessive temperature.