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  • The L4988 is a monolithic integrated 5V voltage regulator with a low drop voltage at currents up to 200mA. The output voltage regulating element consists in a p-channel MOS and the regulation is performed regardless of input voltage transients up to 40V. The high precision of the output voltage is obtained with a pre-trimmed reference voltage. The L4988 is protected against short circuit and an over-temperature protection switches off the device in case of extremely high power dissipa-tion. The L4988 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 1V
    • Programmable reset pulse delay with external capacitor
    • Watchdog
    • Programmable watchdog timer with external capacitor
    • 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

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4988D
Active
SO-8 Automotive Ecopack1
L4988DTR
Active
SO-8 Automotive Ecopack1

L4988D

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack1

L4988DTR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L4988D No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube SO-8 - - CHINA 0.4701 / 1k
L4988DTR No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 - - CHINA 0.4701 / 1k

L4988D

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4701 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4701 / 1k

Country of Origin

CHINA

L4988DTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4701 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.4701 / 1k

Country of Origin

CHINA

(*) 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