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LA5757TP датащи(PDF) 1 Page - ON Semiconductor

номер детали LA5757TP
подробное описание детали  Separately-excited Step-down Switching Regulator
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производитель  ONSEMI [ON Semiconductor]
домашняя страница  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LA5757TP датащи(HTML) 1 Page - ON Semiconductor

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40809 MS 20090326-S00004 No.A1439-1/6
http://onsemi.com
Semiconductor Components Industries, LLC, 2013
August, 2013
LA5757TP
Overview
The LA5757TP 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 (300kHz) 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
Output current
IO max
1.5
A
SW pin application reverse
VSW
-1
V
Allowable power dissipation
Pd max
Mounted on a specified board*
1.1
W
Operating temperature
Topr
-30 to +125
°C
Storage temperature
Tstg
-40 to +150
°C
* Specified board: 114.3mm
× 76.1mm × 1.6mm, glass epoxy board.
Recommended Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Input voltage range
VIN
4.5 to 32
V
Ordering number : ENA1439
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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