NCV5171_10 Datasheet, PDF (1/19 Pages) ON Semiconductor – 1.5 A 280 kHz/560 kHz Boost Regulators

NCV5171, NCV5173
1.5 A 280 kHz/560 kHz
Boost Regulators
The NCV5171/73 products are 280 kHz/560 kHz switching
regulators with a high efficiency, 1.5 A integrated switch. The parts
operate 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. These parts are 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
♦ −40°C to 125°C
• These are Pb−Free Devices
http://onsemi.com
SOIC−8
D SUFFIX
CASE 751
MARKING DIAGRAM AND
PIN CONNECTIONS
1
V_C
FB
8
V_SW
PGND
Test
AGND
SS
V_CC
517xE = Specific Device Code
x
= 1 or 3
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W = Work Week
G
= Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping^†
NCV5171EDR2G SOIC−8
(Pb−Free)
NCV5173EDR2G SOIC−8
(Pb−Free)
2500 Units / Box
2500 Units / Box
†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, 2010
1
January, 2010 − Rev. 4
Publication Order Number:
NCV5171/D