LA5771MP Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – Separately-excited Step-down Switching Regulator (3.3V)

Ordering number : EN8273A
LA5771MP
Monolithic Linear IC
Separately-excited Step-down
Switching Regulator (3.3V)
http://onsemi.com
Overview
The LA5771MP is a separately-excited step-down switching regulator (3.3V).
Features
• 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
Input voltage
Output current
SW pin application reverse voltage
VIN _max
IO max
Vsw
Allowable power dissipation
Pd max
Mounted on the specified board *
Operating temperature
Topr
Storage temperature
Tstg
* Mounted on a specified board: 114.3mm×76.1mm×1.6mm, 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
5.5 to 28
V
Semiconductor Components Industries, LLC, 2013
August, 2013
13107 MS IM B8-8794 No.8273-1/5