NCV5171 Datasheet, PDF (1/19 Pages) ON Semiconductor – 1.5 A 280 kHz Boost Regulators

NCV5171
1.5 A 280 kHz Boost
Regulators
The NCV5171 is a 280 kHz switching regulator with a high
efficiency, 1.5 A integrated switch. The part operates over a wide input
voltage range, from 2.7 V to 30 V. The flexibility of the design allows
the chip to operate in most power supply configurations, including
boost, flyback, forward, inverting, and SEPIC. The ICs utilize current
mode architecture, which allows excellent load and line regulation, as
well as a practical means for limiting current. Combining high
frequency operation with a highly integrated regulator circuit results
in an extremely compact power supply solution. The circuit design
includes provisions for features such as frequency synchronization,
shutdown, and feedback controls for positive voltage regulation. This
part is pin−to−pin compatible with LT1372/1373.
Features
• Integrated Power Switch: 1.5 A Guaranteed
• Wide Input Range: 2.7 V to 30 V
• High Frequency Allows for Small Components
• Minimum External Components
• Easy External Synchronization
• Built in Overcurrent Protection
• Frequency Foldback Reduces Component Stress During an
Overcurrent Condition
• Thermal Shutdown with Hysteresis
• Shut Down Current: 50 mA Maximum
• Pin−to−Pin Compatible with LT1372/1373
• NCV Prefix for Automotive and other Applications Requiring Site
and Control Changes
• This is a Pb−Free Device
http://onsemi.com
SOIC−8
D SUFFIX
CASE 751
MARKING DIAGRAM AND
PIN CONNECTIONS
1
V_C
FB
Test
SS
8
V_SW
PGND
AGND
V_CC
5171E = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W = Work Week
G
= Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping^†
NCV5171EDR2G SOIC−8 2500 Units / Box
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2006
1
November, 2006 − Rev. 1
Publication Order Number:
NCV5171/D