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NCP9001 Folha de dados(PDF) 1 Page - ON Semiconductor

Nome de Peças NCP9001
Descrição Electrónicos  1.5 MHz, 600 mA, High?묮fficiency, Low Quiescent Current, Adjustable Output Voltage Step?묭own Converter
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Fabricante Electrônico  ONSEMI [ON Semiconductor]
Página de início  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP9001 Folha de dados(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2006
August, 2006 − Rev. 2
1
Publication Order Number:
NCP9001/D
NCP9001
1.5 MHz, 600 mA,
High−Efficiency, Low
Quiescent Current,
Adjustable Output Voltage
Step−Down Converter
The NCP9001 step−down PWM DC−DC converter is optimized for
portable applications powered from one cell Li−ion or three cell
Alkaline/NiCd/NiMH batteries. The device is available in an adjustable
output voltage from 0.9 V to 3.3 V. It uses synchronous rectification to
increase efficiency and reduce external part count. The device also has a
built−in 1.5 MHz (nominal) oscillator which reduces component size by
allowing a small inductor and capacitors. Automatic switching
PWM/PFM mode offers improved system efficiency.
Finally, it includes an integrated soft−start, cycle−by−cycle current
limiting, and thermal shutdown protection. The NCP9001 is
available in the space saving, low profile TSOP5 package.
Features
95.3% of Efficiency for 3.3 V Output and 4.2 V Input and 80 mA
Load−Current
Sources up to 600 mA
1.5 MHz Switching Frequency
Adjustable Output Voltage from 0.9 V to 3.3 V
30 mA Quiescent Current
Synchronous Rectification for Higher Efficiency
2.7 V to 5.5 V Input Voltage Range
Thermal Limit Protection
Shutdown Current Consumption of 0.3 mA
Short Circuit Protection
This is a Pb−Free Device
Typical Applications
Cellular Phones, Smart Phones and PDAs
Digital Still/Video Cameras
MP3 Players and Portable Audio Systems
Wireless and DSL Modems
Portable Equipment
USB Powered Devices
GND
2
VIN
1
EN
3
LX 5
FB 4
OFF ON
VIN
CIN
COUT
R1
R2
Cff
Figure 1. Typical Application
L
VOUT
TSOP−5
SN SUFFIX
CASE 483
http://onsemi.com
MARKING
DIAGRAM
1
5
Device
Package
Shipping
ORDERING INFORMATION
NCP9001SNT1G
TSOP−5
(Pb−Free)
3000/Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
DBP
= Specific Device Code
A
= Assembly Location
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
1
5
DBPAYWG
G


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