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L49

  

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Manufacturer Part no Description View
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L497 2A STEP DOWN SWITCHING REGULATOR
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 
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);

ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4960 2.5A POWER SWITCHING REGULATOR

DESCRIPTION
The L4960 is a monolithic power switching regulator delivering 2.5A at a voltage variable from 5V to 40V in step down configuration.


other parts : L4960H 
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4921 VERY LOW DROP ADJUSTABLE REGULATORS

DESCRIPTION
The L4920 and L4921 are adjustable voltage regulator swith a very low voltage drop(0.4V typ.at 0.4A Tj = 25°C), low quiescent current and comprehensive on-chip protection.
These devices are protected against load dump and field decay transients, polarity reversal and over heating.
A foldback current limiter protects against load short circuits.
The output voltage is adjustable through an external divider from 1.25V to 20V. The minimum operating


other parts : L4920 
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 
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4920 VERY LOW DROP ADJUSTABLE REGULATORS

DESCRIPTION
The L4920 and L4921 are adjustable voltage regulator swith a very low voltage drop(0.4V typ.at 0.4A Tj = 25°C), low quiescent current and comprehensive on-chip protection.
These devices are protected against load dump and field decay transients, polarity reversal and over heating.
A foldback current limiter protects against load short circuits.
The output voltage is adjustable through an external divider from 1.25V to 20V. The minimum operating


other parts : L4921 
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4918 VOLTAGE REGULATORS PLUS FILTER

DESCRIPTION
The L4918 combines both a filter and a voltage regulator in order to provide a high ripple rejection over a wider input voltage range. A supervisor low-pass loop of the element prevents the output transistor from saturation at low input voltages. The non linear behaviour of this control circuitry allows a fast setting of the filter.

.FIXED OUTPUT VOLTAGE 8.5V
.250mA OUTPUT CURRENT
.HIGH RIPPLE REJECTION
.HIGH LOAD REGULATION
.HIGH LINE

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

ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4981 POWER FACTOR CORRECTOR

DESCRIPTION
The L4981 I.C. provides the necessary


other parts : 1366 L4981A L4981A01 L4981AD L4981AD013TR L4981B L4981BD L4981BD013TR L4981X L4981XD 

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