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L494

  

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Manufacturer Part no Description View
ON-Semiconductor
ON-SemiconductorON-Semiconductor
L4949 100 mA, 5.0 V, Low Dropout Voltage Regulator with Power−On Reset

The L4949 is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as power−on reset and input voltage sense.
It is designed for supplying the micro−computer controlled systems especially in automotive applications.

Features
• Operating DC Supply Voltage Range 5.0 V to 28 V
• Transient Supply Voltage Up to 40 V
• Extremely Low Quiescent Current in Standby Mode
• High


other parts : L4949D  L4949DG  L4949DR2  L4949DR2G  L4949N  L4949NG  NCV4949  NCV4949DG  NCV4949DR2  NCV4949DR2G  
L4949 PDF
Motorola
MotorolaMotorola
L4949 MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR

Μultifunction Very Low Dropout Voltage Regulator

The L4949 is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as power–on reset and input voltage sense.
It is designed for supplying the micro–computer controlled systems especially in automotive applications.

• Operating DC Supply Voltage Range 5.0 V to 28 V
• Transient Supply Voltage Up to 40 V
• Extremely Low Quiescent


other parts : L4949D  L4949N  
L4949 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4943 MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

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 that will hold enough energy for the 5V Stand-by line to allow the µP to store data.

■ 3 PROGRAMMABLE OUTPUTS:
   ♦ 3 TO 11V (500mA);
   ♦ 3 TO 11V (500mA);

L4943 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4940 VERY LOW DROP 1.5 A REGULATORS

Description
The L4940 series of three terminal positive regulators is available in TO-220, TO-220FP and D
2PAK packages and with several fixed output voltages, making it useful in a wide range of
industrial and consumer applications. Thanks to its very low input/output voltage drop, these
devices are particularly suitable for batteries powered equipment, reducing consumption andprolonging battery life. Each type employs internal current limiting, antisaturation


other parts : L4940V10  L4940V12  
L4940 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4945 5V VERY LOW DROP VOLTAGE REGULATOR

DESCRIPTION
The L4945 is a monolithic integrated circuit in Versawatt package specially designed to provide a stabilized supply voltage for automotive and in dustrial electronic systems. Thanks to their very low voltage drop, in automotive applications the devices can work correctly even during the cranking phase, when the battery voltage could fall as low as 6V. Furthermore, they incorporate a complete range of protection circuits against the dangerous overvoltages always present on

L4945 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4949 MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR

DESCRIPTION
The L4949E is a monolithic integrated 5V voltage regulator with a very low dropout output and additional functions as power-on reset and input voltage sense. It is designed for supplying the microcomputer controlled systems especially in automotive applications.

■ OPERATING DC SUPPLY VOLTAGE RANGE 5V - 28V
■ TRANSIENT SUPPLY VOLTAGE UP TO 40V
■ EXTREMELY LOW QUIESCENT CURRENT IN STANDBY MODE
■ HIGH PRECISION STANDBY OUTPUT VOLTAGE


other parts : L4949E  L4949ED  L4949EP  
L4949 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4941 VERY LOW DROP 1A REGULATOR

DESCRIPTION
The L4941 is a three terminal 5V positive regulators available in TO-220, TO-220FP and D2PAK packages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low input/output voltage drop, these devices are particularly suitable for battery powered equipments, reducing consumption and prolonging battery life. It employs internal current limiting, antisaturation circuit, thermal shut-down and safe area protection.

■ LOW


other parts : L4941BD2T  L4941BDT  L4941BDT-TR  L4941BDTTR  L4941BP  L4941BV  L4941BX  
L4941 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4947 5V-0.5A VERY LOW DROP REGULATOR WITH RESET

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


other parts : L4947R  
L4947 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4946 QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET

DESCRIPTION
The L4946 is a quad output low drop voltage regulator. The four outputs are a low drop 10V at 125mA (VO1), a 8V at 250mA (VO2), a 5V at 200mA (VO3) and a low drop 5V st-by line at 100mA (VO4).
The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occurring. VO1,2,3 are off during st-by mode.
The STCAP pin allows the battery voltage to decay slowly giving the µP time to store data. This IC is designed for supplying

L4946 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4948 QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET

DESCRIPTION
The L4946B is a quad output low drop voltage regulator. The four outputs are a low drop 10V at 125mA (VO1), a 8.5V at 250mA (VO2), a 5V at 200mA (VO3) and a low drop 5V st-by line at 100mA (VO4).
The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occurring. VO1,2,3 are off during st-by mode.
The STCAP pin allows the battery voltage to decay slowly giving the µP time to store data. This IC is designed for supplying


other parts : L4946B  
L4948 PDF

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