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NCV5173 fiches techniques PDF

ON Semiconductor - Boost Regulators

Numéro de référence NCV5173
Description Boost Regulators
Fabricant ON Semiconductor 
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NCV5173 fiche technique
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
ăIntegrated Power Switch: 1.5 A Guaranteed
ăWide Input Range: 2.7 V to 30 V
ăHigh Frequency Allows for Small Components
ăMinimum External Components
ăEasy External Synchronization
ăBuilt in Overcurrent Protection
ăFrequency Foldback Reduces Component Stress During an
Overcurrent Condition
ăThermal Shutdown with Hysteresis
ăShut Down Current: 50 mA Maximum
ăPin-to-Pin Compatible with LT1372/1373
ăNCV Prefix for Automotive and other Applications Requiring Site
and Control Changes
ă-40°C to 125°C
ăThese are Pb-Free Devices
http://onsemi.com
SOIC-8
D SUFFIX
CASE 751
MARKING DIAGRAM AND
PIN CONNECTIONS
1
VC
FB
8
VSW
PGND
Test AGND
SS VCC
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 2500 Units / Box
(Pb-Free)
NCV5173EDR2G 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.
©Ă Semiconductor Components Industries, LLC, 2008
January, 2008 - Rev. 3
1
Publication Order Number:
NCV5171/D

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