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LA5759 Scheda tecnica(PDF) 1 Page - ON Semiconductor

Il numero della parte LA5759
Spiegazioni elettronici  Separately-excited Step-down Switching Regulator
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Produttore elettronici  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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LA5759 Scheda tecnica(HTML) 1 Page - ON Semiconductor

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51210 SY 20100308-S00001 No.A1683-1/4
http://onsemi.com
Semiconductor Components Industries, LLC, 2013
August, 2013
LA5759
Overview
The LA5759 is a separately-excited step-down switching regulator (variable type).
Features
• Output smoothing condenser can use a Low ESR condenser for the reliability improvement
• High efficiency
• Four external parts
• Time-base generator (80kHz) incorporated
• Current limiter incorporated
• Thermal shutdown circuit incorporated
• Soft start circuit incorporated
Specifications
Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Input voltage
VIN max
34
V
SW pin application reverse
VSW
-1
V
Pd max1
Infinite heat sink.
7.5
W
Allowable power dissipation
Pd max2
No heat sink.
1.75
W
Operating temperature
Topr
-30 to +125
°C
Storage temperature
Tstg
-40 to +150
°C
Recommended Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Input voltage range
VIN
4.5 to 32
V
Ordering number : ENA1683
Monolithic Linear IC
Separately-excited Step-down
Switching Regulator
(Variable Type)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.


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