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NCP1597BMNTXG Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1597BMNTXG Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 9 page © Semiconductor Components Industries, LLC, 2009 October, 2009 − Rev. P0 1 Publication Order Number: NCP1597B/D NCP1597B Product Preview 1 MHz, 2 A Synchronous Buck Regulator The NCP1597B is a fixed 1 MHz, high−output−current, synchronous PWM converter that integrates a low−resistance, high−side P−channel MOSFET and a low−side N−channel MOSFET. The NCP1597B utilizes current mode control to provide fast transient response and excellent loop stability. It regulates input voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.8 V and is able to supply up to 2 A. The NCP1597B has features including fixed internal switching frequency (FSW), and an internal soft−start to limit inrush current. Using the EN pin, shutdown supply current is reduced to 3 mA maximum. Other features include cycle−by−cycle current limiting; short−circuit protection, low dropout mode, power saving mode and thermal shutdown. Features • Input Voltage Range: from 4.0 V to 5.5 V • Internal 140 mW High−Side Switching P−Channel MOSFET and 90 m W Low−Side N−Channel MOSFET • Fixed 1 MHz Switching Frequency • Cycle−by−Cycle Current Limiting • Overtemperature Protection • Internal Soft−Start • Start−up with Pre−Biased Output Load • Adjustable Output Voltage Down to 0.8 V • Power Saving Mode During Light Load • Low Dropout Mode Operation to Extend the Battery Life • These are Pb−Free Devices Applications • DSP Power • Hard Disk Drivers • Computer Peripherals • Home Audio • Set−Top Boxes • Networking Equipment • LCD TV • Wireless and DSL/Cable Modem • USB Power Devices This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice. Device Package Shipping† ORDERING INFORMATION NCP1597BMNTWG DFN10 (Pb−Free) 3000 / Tape & Reel NCP1597BMNTXG DFN10 (Pb−Free) DFN10 CASE 485C 3000 / Tape & Reel MARKING DIAGRAM http://onsemi.com †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. PGND PGND LX EN VCC VCCP 1 2 3 10 9 8 (Top View) PIN CONNECTIONS 1597B = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package 1597B ALYWG G (Note: Microdot may be in either location) LX AGND 4 7 NC FB 5 6 |
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