L4943

Polarity : Positive
Maximum Operating Temperature : + 85 C
Output Type : Adjustable
Mounting Style : Through Hole
Line Regulation : 50 mV
Load Regulation : 80 mV
Output Current : 500 mA
Input Voltage MAX : 6 V
Package / Case : Multiwatt-15
Output Voltage : 3 V to 11 V, 3 V to 11 V, 3 V to 7 V


Features:

·3 PROGRAMMABLE OUTPUTS:
  -3 TO 11V (500mA);
  -3 TO 11V (500mA);
  -3 TO 7V (500mA) STANDBY
·OUT1 AND OUT2 WITH INDEPENDENT ENABLE
·CONTROL FOR STAND-BY MODE
·0.4A HIGH SIDE DRIVER
·LOAD DUMP PROTECTION
·THERMAL SHUTDOWN


Specifications

Symbol	Parameter	Value	Unit
VS	DC Operating Supply Voltage	-0.6to30	V
	Transient Supply Overvoltage (50ms)	50	V
IO	Voltage Regulator Output Current	Internally limited
Vin	Input Voltage (EN1, EN2)	0to6	V
RSER	Output Capacitor Series Eq. Resistance	0.2to10
Ptot	Power Dissipation (Tcase = 85°C)	33	W
Top	Operating Temperature Range	-40to85	°C
Tstg	Storage Temperature Ranges	-55to150	°C

Description

The L4943 contains a triple voltage regulator and a high side driver.

In stand-by the output is active as long as possible even when in thermal shutdown or under any other fault conditions.

The STCAP pin allows the use of a reserve supply capacitor L4943 that will hold enough energy for the 5V Stand-by line to allow the P to store data

Parameters:

Technical/Catalog Information	L4943
Vendor	STMicroelectronics
Category	Integrated Circuits (ICs)
Package / Case	Multiwatt-15 (Vertical, Bent and Staggered Leads)
Packaging	Tube
Type	Audio Voltage Regulator
Voltage - Input	11 ~ 18 V
Voltage - Output	3 ~ 11 V
Number of Outputs	3
Applications	Converter, Car Audio System
Operating Temperature	-40°C ~ 85°C
Drawing Number	*
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	L4943 L4943