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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.
Key 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)
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Sample & Buy
| Part Number | Package | Packing Type | Temperature (°C) | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L4993DTR | SO-8 | Tape And Reel | - | - |
Active
|
0.6189 | 1000 | EAR99 | CHINA | Check Availability | Get sample | |
| L4993MDTR | SO-20 | Tape And Reel | -40 | 150 |
Active
|
0.698 | 1000 | EAR99 | MALAYSIA | Check Availability | Get sample | |
| L4993MD | SO-20 | Tube | -40 | 150 |
Active
|
0.698 | 1000 | EAR99 | - | No availability of distributors reported, please contact our sales office | ||
| L4993D | SO-8 | Tube | -40 | 150 |
NRND
|
0.6189 | 1000 | EAR99 | - | No availability of distributors reported, please contact our sales office | ||
L4993MD
Package
SO-20Packing Type
TubeUnit Price (US$)
0.698*L4993D
Package
SO-8Packing Type
TubeUnit Price (US$)
0.6189*(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L4993D |
NRND
|
SO-8 | Automotive | Ecopack1 (*) |
|
| L4993DTR |
Active
|
SO-8 | Automotive | Ecopack2 | |
| L4993MD |
Active
|
SO-20 | Automotive | Ecopack1 (*) | |
| L4993MDTR |
Active
|
SO-20 | Automotive | 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.
