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  • The L4989M and L4989MD are monolithic integrated 5 V voltage regulators 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 devices are protected against short circuit and an overtemperature protection switches off the devices in case of extremely high power dissipation.
    The L4989M and L4989MD watchdogs are active when the Enable pin is high. Features like reset and watchdog make this devices 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
    • Very low quiescent current with watchdog disabled
    • Precision output voltage (±3%)
    • Low drop voltage (180 mV typ at Io = 150 mA)
    • Reset circuit sensing the output voltage down to 1 V
    • Programmable reset delay with external capacitor
    • Watchdog disable input
    • Programmable watchdog timer with external capacitor
    • Thermal shutdown and short circuit protection
    • Wide temperature range (Tj = -40°C to 150°C)

Sample & Buy

Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
Order from ST
min
max
L4989MD013TR SO-20 Tape And Reel -40 150
Active
- 1000 EAR99
MORE INFO

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office
L4989MD SO-20 Tube -40 150
NRND
- - EAR99
MORE INFO

Country of Origin:

-

No availability of distributors reported, please contact our sales office

L4989MD013TR

Package

SO-20

Packing Type

Tape And Reel

Unit Price (US$)

*

Operating Temperature (°C)

(min)

-40

(max)

150

Marketing Status

Active

Unit Price (US$)

-

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L4989MD

Package

SO-20

Packing Type

Tube

Unit Price (US$)

*

Operating Temperature (°C)

(min)

-40

(max)

150

Marketing Status

NRND

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

Country of Origin

-

(*) 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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Technical Documentation

    • Description Version Size Action
      DS8714
      Automotive low power voltage regulator
      3.0
      619.3 KB
      PDF
      DS8714

      Automotive low power voltage regulator

    • Description Version Size Action
      AN290
      VERY LOW DROP REGULATORS ENHANCE SUPPLY PERFORMANCE
      1.2
      525.66 KB
      PDF
      AN290

      VERY LOW DROP REGULATORS ENHANCE SUPPLY PERFORMANCE

Publications and Collaterals

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    • Description Version Size Action
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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4989MD
NRND
SO-20 Automotive Ecopack1
L4989MD013TR
Active
SO-20 Automotive Ecopack1

L4989MD

Package:

SO-20

Material Declaration**:

Marketing Status

NRND

Package

SO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack1

L4989MD013TR

Package:

SO-20

Material Declaration**:

Marketing Status

Active

Package

SO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack1

(**) 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.