L4953G

NRND

Voltage regulator with backup and reset, ignition comparator and low voltage warning

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  • The L4953G contains a triple voltage regulator and a power switch.

    The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occuring.
    In stand-by output is active as long as possible even when in thermal shutdown or any other fault conditions.
    The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-by line to allow the μP to store data.

    Key Features

    • REVERSE BATTERY AND LOAD DUMP PROTECTION
    • IGNITION COMPARATOR
    • 3 OUTPUTS: 9.2V (500mA); 5V (1A); 5V (100mA) STANDBY\t
    • 2A HIGH SIDE DRIVER WITH CLAMPED OUTPUT (16V)
    • OUT1 (9.2V) AND OUT2 (5V) WITH INDEPENDENT ENABLE CONTROL FOR STANDBY MODE
    • RESET FUNCTION
    • THERMAL SHUTDOWN
    • LOGIC OUTPUT FOR:\t\tSUPPLY UNDERVOLTAGE (LVW)\t\tOVERVOLTAGE (FAULT)\t\tTHERMAL PROTECTION (FAULT)\t\t

Circuit Diagram

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4953G
NRND
MW 15L Automotive Ecopack1

L4953G

Package:

MW 15L

Material Declaration**:

Marketing Status

NRND

Package

MW 15L

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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L4953G No availability of distributors reported, please contact our sales office Buy Direct
NRND
EAR99 NEC Tube MW 15L -40 85 MOROCCO 3.2 / 1k

L4953G

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

3.2 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 15L

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

3.2 / 1k

Country of Origin

MOROCCO

(*) 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