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LA5774MC-E Datenblatt(PDF) 1 Page - ON Semiconductor

Teilenummer LA5774MC-E
Bauteilbeschribung  Switching Regulator
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52913NK 20130426-S00001 No.A2191-1/6
Semiconductor Components Industries, LLC, 2013
May, 2013
http://onsemi.com
LA5774MC
Overview
The LA5774MC is a Separately-excited step-down switching regulator (variable type).
Function
• High efficiency.
• Time-base generator (160kHz) incorporated.
• Current limiter incorporated.
• Thermal shutdown circuit incorporated.
• Soft start circuit incorporated.
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum Input voltage
VIN max
30
V
Maximum Output current
IO max
3
A
SW pin application reverse voltage
VSW
-1
V
Allowable power dissipation
Pd max
Mounted on a substrate.*
3.9
W
VOS pin application reverse voltage
VVOS
-0.2 to +7
V
Operating temperature
Topr
-30 to +125
°C
Storage temperature
Tstg
-40 to +150
°C
* Specified substrate : 76.1×114.3×1.6mm
3 : Copper foil ratio 60% FR4
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Recommended Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Input voltage range
VIN
4.5 to 28
V
Ordering number : ENA2191
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.
ORDERING INFORMATION
See detailed ordering and shipping information on page 5 of this data sheet.


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