LA5744MP Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – Monolithic Linear IC Separately-Excited Step-Down Switching Regulator (Variable Type)

Ordering number : ENA0587A
LA5744MP
Monolithic Linear IC
Separately-Excited Step-Down
Switching Regulator
(Variable Type)
http://onsemi.com
Overview
The LA5744MP is a separately-excited step-down switching regulator (variable type).
Functions
• High efficiency.
• Time-base generator (300kHz) incorporated.
• Current limiter incorporated.
• Thermal shutdown circuit incorporated.
• Soft start circuit incorporated.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Input voltage
Maximum output current
SW pin application reverse voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VIN
IO max
VSW
Pd max
Topr
Tstg
Conditions
Mounted on a circuit board.*
* Specified circuit board : 76.1×114.3×1.6mm³ : Copper foil ratio 60% FR4
Ratings
Unit
30
V
3
A
-1
V
3.9
W
-30 to +125
°C
-40 to +150
°C
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.
Recommended Operating Conditions at Ta = 25°C
Parameter
Input voltage range
Symbol
VIN
Conditions
Ratings
Unit
4.5 to 28
V
Semiconductor Components Industries, LLC, 2013
August, 2013
31407 MS PC / 11707 MS PC 20060929-S00007 No.A0587-1/5