LV5749NV Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – 1-channel Step-down Switching Regulator

Ordering number : ENA1684
LV5749NV
Bi-CMOS LSI
1-channel Step-down
Switching Regulator
http://onsemi.com
Application
The LV5749NV is a 1-channel step-down switching regulator.
Functions
• 1 channel step-down switching regulator controller.
• Load-independent soft start circuit.
• ON/OFF function.
• Built-in pulse-by-pulse OCP circuit. It is detected by using ON resistance of an external MOS.
• Synchronous rectification.
• Current mode control.
• Synchronous drive by external signal.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
supply voltage
Allowable Power dissipation
Operating temperature
Storage temperature
Symbol
VIN max
Pd max
Topr
Tstg
Conditions
Mounted on a specified board. *
* : When mounted on the specified printed circuit board (114.3mm × 76.1mm × 1.6mm), glass epoxy
Ratings
Unit
45
V
0.74
W
-40 to +85
°C
-55 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 Range at Ta = 25°C
Parameter
Supply voltage range
Error amplifier input voltage
Symbol
VIN
Conditions
Ratings
Unit
8.5 to 42
V
0 to 1.6
V
Semiconductor Components Industries, LLC, 2013
August, 2013
82510 SY 20100312-S00001 No.A1684-1/6