LA5774MP Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type)

Ordering number : ENA0490
LA5774MP
Monolithic Linear IC
Separately-excited Step-down
Switching Regulator
(Variable Type)
http://onsemi.com
Overview
The LA5774MP is a Separately-excited step-down switching regulator (variable type).
Functions
• Low-ESR capacitor with increased reliability applicable as the output smoothing capacitor.
• High efficiency.
• Four external parts.
• 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
Maximum Input voltage
Maximum Output current
SW pin application reverse voltage
Allowable power dissipation
VIN max
IO max
VSW
Pd max
Mounted on a substrate.*
Operating temperature
Topr
Storage temperature
Tstg
* Specified substrate : 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
72606 MS PC B8-9089 No.A0490-1/5