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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 L497 PDF
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  
L4981 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 microcomputer controlled systems specially in automotive applications.

■ 4 OUTPUTS: 10V (125mA); 8V (250mA); 5V (200mA); 5V (100mA)
■ 10V AND 5V (100mA) OUTPUT ARE LOW DROP
■ 5V (100mA) ST-BY OUTPUT VOLTAGE
■ EARLY WARNING OUTPUT FOR SUPPLY UNDERVOLTAGE (LVW)
■ THERMAL SHUTDOWN AND CURRENT LIMITATION (FOLDBACK)
■ REVERSE BATTERY AND LOAD DUMP PROTECTION
■ INHIBIT (ON/OFF) AND RESET FUNCTIONS

 

L4946 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4962 1.5A POWER SWITCHING REGULATOR

DESCRIPTION
The L4962 is a monolithic power switching regulator delivering 1.5A at a voltage variable from 5V to 40V in step down configuration.


other parts : L4962/A  L4962A  L4962E  L4962E/A  L4962EH  L4962EH/A  
L4962 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 Current in Standby Mode
• High Precision Standby Output Voltage 5.0 V ±1%
• Output Current Capability Up to 100 mA
• Very Low Dropout Voltage Less Than 0.4 V
• Reset Circuit Sensing The Output Voltage
• Programmable Reset Pulse Delay With External Capacitor
• Voltage Sense Comparator
• Thermal Shutdown and Short Circuit Protections

 


other parts : L4949D  L4949N  
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 DROPOUT VOLTAGE (450mV Typ. at 1A)
■ VERY LOW QUIESCENT CURRENT
■ THERMAL SHUTDOWN
■ SHORT CIRCUIT PROTECTION
■ REVERSE POLARITY PROTECTION

 


other parts : L4941BD2T  L4941BDT  L4941BDT-TR  L4941BDTTR  L4941BP  L4941BV  L4941BX  
L4941 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4990 PRIMARY CONTROLLER

DESCRIPTION
This primary controller I.C., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM control ler this device includes some


other parts : L4990A  L4990AD  L4990D  
L4990 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4956 5A LOW DROP LINEAR REGULATOR

DESCRIPTION
The L4956 is an adjustable monolithic linear regulator designed to satisfy very heavy load transient and efficient power conversion from 3.3V to 1.26V and lower, up to 5A.
Designed in BCDII technology, it uses a charge pump technique to have a proper internal N-channel gate drive. The signal supply voltage input VSIG can operate from 4.5V up to an absolute of 7V and the power supply voltage input VPW can opearte from 3V min to an absolute of 7V. An RDSON of 150mV

L4956 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4964 HIGH CURRENT SWITCHING REGULATOR

DESCRIPTION
The L4964 is a stepdown power switching regulator delivering4A at a voltage variable from 5.1V to 28V.


other parts : L4964HT  
L4964 PDF
ST-Microelectronics
ST-MicroelectronicsST-Microelectronics
L4975 5A SWITCHING REGULATOR

DESCRIPTION
The L4975A is a stepdown monolithic power switching regulator delivering 5A at a voltage variable from 5.1 to 40V.
Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times.


other parts : L4975A  
L4975 PDF

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