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NCP1597A Datasheet دیتاشیت PDF دانلود

دیتاشیت - ON Semiconductor - 2.0 A Synchronous Buck Regulator

شماره قطعه NCP1597A
شرح مفصل 2.0 A Synchronous Buck Regulator
تولید کننده ON Semiconductor 
آرم ON Semiconductor 


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NCP1597A شرح
NCP1597A
www.DataSheet4U.com
1 MHz, 2.0 A Synchronous
Buck Regulator
The NCP1597A family are fixed 1 MHz, highoutputcurrent,
synchronous PWM converters that integrate a lowresistance,
highside Pchannel MOSFET and a lowside Nchannel MOSFET.
The NCP1597A 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 2.0 A.
The NCP1597A includes an internally fixed switching frequency
(FSW), and an internal softstart to limit inrush currents. Using the EN
pin, shutdown supply current is reduced to 3 mA maximum.
Other features include cyclebycycle current limiting,
shortcircuit protection, power saving mode and thermal shutdown.
Features
Input Voltage Range: from 4.0 V to 5.5 V
Internal 140 mW HighSide Switching PChannel MOSFET and
90 mW LowSide NChannel MOSFET
Fixed 1 MHz Switching Frequency
CyclebyCycle Current Limiting
Overtemperature Protection
Internal SoftStart
Startup with PreBiased Output Load
Adjustable Output Voltage Down to 0.8 V
Power Saving Mode During Light Load
These are PbFree Devices
Applications
DSP Power
Hard Disk Drivers
Computer Peripherals
Home Audio
SetTop Boxes
Networking Equipment
LCD TV
Wireless and DSL/Cable Modem
USB Power Devices
http://onsemi.com
1
DFN6
CASE 506AH
MARKING
DIAGRAM
1 1597A
AYWWG
G
A = Assembly Location
Y = Year
WW = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
FB 1
GND 2
LX 3
6 EN
5 VCC
4 VCCP
ORDERING INFORMATION
Device
Package
Shipping
NCP1597AMNTWG DFN6
3000 / Tape &
(PbFree)
Reel
†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
June, 2010 Rev. 0
1
Publication Order Number:
NCP1597/D

قانون اساسیصفحه 13
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دیتاشیت توصیه

شماره قطعه شرح مفصل تولید کنندگان
NCP1597A 2.0 A Synchronous Buck Regulator ON Semiconductor
ON Semiconductor
NCP1597B 2 A Synchronous Buck Regulator ON Semiconductor
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