L4993

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Design Win

Automotive Low Drop Voltage Regulator With Watchdog

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Product overview

Description

The L4993 is a monolithic integrated 5 V Voltage regulator with a low drop voltage at currents up to 150 mA.The output voltage regulating element consists in a p-channel MOS and the regulation is performed regardless of input voltage transients up to 40 V. The high precision of the output voltage is obtained with a pre-trimmed reference voltage. The L4993 is protected against short circuit and an over-temperature protection switches off the device in case of extremely high power dissipation. The L4993 watchdog is active when the Enable is high. State of the art features like reset and watchdog make this device particularly suitable to supply microprocessor systems in automotive applications.

  • All features

    • AEC-Q100 qualified
    • Operating DC supply voltage range 5.6 V to 31 V
    • Reset circuit sensing the output voltage down to 1 V
    • Programmable reset pulse delay with external capacitor
    • Watchdog
    • Programmable watchdog timer with external
    • Enable input for enabling/disabling the watchdog functionality
    • Thermal shutdown and short circuit protection
    • Wide temperature range (Tj = -40°C to 150°C)

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L4993

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4993DTR
Active
SO-8 Automotive Ecopack2
L4993MD
NRND
SO-20 Automotive Ecopack2 (**)
L4993MDTR
Active
SO-20 Automotive Ecopack2 (**)

L4993DTR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L4993MD

Package:

SO-20

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

SO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack2 (**)

L4993MDTR

Package:

SO-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack2 (**)

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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L4993DTR
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L4993MDTR
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L4993MD
Available at distributors

Distributor availability of L4993MD

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Distributor reported inventory date:

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L4993DTR Active

Budgetary Price (US$)*/Qty:
-
Package:
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Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L4993DTR

Operating Temperature (°C)

Min:

Max:

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Distributor reported inventory date:

L4993MDTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L4993MDTR

Operating Temperature (°C)

Min:

Max:

L4993MD NRND

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

L4993MD

Operating Temperature (°C)

Min:

Max:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors