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L4974A
DC-DC Switching Buck (Step Down) Regulator, Adjustable, 15V-50Vin, 5.1V-40Vout, 3.5Aout, DIP-20
Billedet er vejledende. Se produktspecifikationen.
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Produktoplysninger
ProducentSTMICROELECTRONICS
Producentens varenummerL4974A
Varenummer1094220
Teknisk datablad
Output TypeAdjustable
No. of Outputs1Outputs
TopologyBuck (Step Down)
Input Voltage Min15V
Input Voltage Max50V
Max Output Current3.5A
Output Current3.5A
IC Case / PackageDIP
No. of Pins20Pins
IC MountingThrough Hole
Output Voltage - Nom-
Output Voltage Min5.1V
Output Voltage Max40V
Switching Frequency Typ100kHz
Efficiency90%
Operating Temperature Min-40°C
Operating Temperature Max150°C
Product Range-
Qualification-
MSL-
DC / DC Converter IC CaseDIP
Automotive Qualification Standard-
Switching Frequency200kHz
Produktoversigt
The L4974A is a step-down monolithic DC-DC Power Switching Regulator delivering 3.5A at a voltage variable from 5.1 to 40V. It is realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. It requires few external components. An efficient operation at switching frequencies up to 200KHz allows reduction in the size of external filter component.
- Internal feed-forward line reg
- Internal current limiting
- Reset and power fail functions
- Input/output sync pin
- Under-voltage lock out with hysteretic turn-ON
- PWM latch for single pulse per period
- Very high efficiency
- Thermal shutdown
- Continuous mode operation
Applikationer
Power Management
Advarsler
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Tekniske specifikationer
Output Type
Adjustable
Topology
Buck (Step Down)
Input Voltage Max
50V
Output Current
3.5A
No. of Pins
20Pins
Output Voltage - Nom
-
Output Voltage Max
40V
Efficiency
90%
Operating Temperature Max
150°C
Qualification
-
SVHC
No SVHC (17-Dec-2015)
Automotive Qualification Standard
-
No. of Outputs
1Outputs
Input Voltage Min
15V
Max Output Current
3.5A
IC Case / Package
DIP
IC Mounting
Through Hole
Output Voltage Min
5.1V
Switching Frequency Typ
100kHz
Operating Temperature Min
-40°C
Product Range
-
MSL
-
DC / DC Converter IC Case
DIP
Switching Frequency
200kHz
Tekniske dokumenter (3)
Tilknyttede produkter
1 produkt fundet
Lovgivning og miljø
Oprindelsesland:
Det land, hvor den sidste væsentlige fremstillingsproces fandt stedOprindelsesland:Malaysia
Det land, hvor den sidste væsentlige fremstillingsproces fandt sted
Det land, hvor den sidste væsentlige fremstillingsproces fandt stedOprindelsesland:Malaysia
Det land, hvor den sidste væsentlige fremstillingsproces fandt sted
Tarifnr.:85423990
US ECCN:EAR99
EU ECCN:NLR
RoHS-kompatibel:Ja
RoHS
Kompatible med RoHS-phthalater:Ja
RoHS
SVHC:No SVHC (17-Dec-2015)
Download certifikat om produktoverholdelse
Certifikater om produktoverholdelse
Vægt (kg):.006804
Produktsporbarhed