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L4947 Datasheet PDF

Part Series:
L4947 Series
Category:
Voltage Regulators
Description:
LDO Regulator Pos 5V 0.5A 5Pin(5+Tab) PENTAWATT
Updated Time: 2023/09/27 08:46:59 (UTC + 8)

L4947 Voltage Regulators Datasheet PDF

#1
L4947H

L4947H

Datasheet PDF (7 Pages)
1.0
ST Microelectronics
#2
L4947PD013TR

L4947PD013TR

Datasheet PDF (7 Pages)
0.8
ST Microelectronics
#3
L4947PD

L4947PD

Datasheet PDF (6 Pages)
1.2
ST Microelectronics
#4
L4947

L4947

Datasheet PDF (6 Pages)
1.2
ST Microelectronics

L4947 Datasheet PDF Voltage Regulators

6 Pages
ST Microelectronics
LDO Regulator Pos 5V 0.5A 5Pin(5+Tab) PENTAWATT

L4947 - ST Microelectronics Specifications

TYPE
DESCRIPTION
Mounting Style
Through Hole
Number of Pins
5 Pin
Case/Package
Pentawatt-5
Number of Outputs
1 Output
Input Voltage (DC)
26.0V (max)
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L4947 - ST Microelectronics Function Overview

DESCRIPTION
The L4947/L4947R is a monolithic integrated circuit in Pentawatt package specially designed to provide a stabilized supply voltage for automotive and industrial electronic systems. Thanks to its very low voltage drop, in automotive applications the L4947/L4947R can work correctly even during the cranking phase, when the battery voltage could fall as low as 6V. Furthermore, it incorporates a complete range of protection circuits against the dangerous overvoltages always present on the battery rail of the car. The reset function makes the device particularly suited to supply microprocessor based systems : a signal is available (after an externally programmable delay) to reset the microprocessor at power-on phase ; at power-off, this signal becomes low inhibiting the microprocessor.
■ PRECISE OUTPUT VOLTAGE (5V ± 4%) OVER FULL TEMPERATURE RANGE (– 40 / 125 °C)
■ VERY LOW VOLTAGE DROP (0.75Vmax) OVER FULL T RANGE
■ OUTPUT CURRENT UP TO 500mA
■ RESET FUNCTION
■ POWER-ON RESET DELAY PULSE DEFINED BY THE EXTERNAL CAPACITOR
■ + 80V LOAD DUMP PROTECTION
■ – 80V LOAD DUMP PROTECTION
■ REVERSE VOLTAGE PROTECTION
■ SHORT CIRCUIT PROTECTION AND THER MAL SHUT-DOWN (with hysteresis)
■ LOW START UP CURRENT
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