參數(shù)資料
型號: NCP9001SNT1G
廠商: ON SEMICONDUCTOR
元件分類: 穩(wěn)壓器
英文描述: 1.5 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter
中文描述: 1.2 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5
封裝: LEAD FREE, TSOP-5
文件頁數(shù): 1/12頁
文件大?。?/td> 192K
代理商: NCP9001SNT1G
Semiconductor Components Industries, LLC, 2006
August, 2006
Rev. 2
1
Publication Order Number:
NCP9001/D
NCP9001
1.5 MHz, 600 mA,
HighEfficiency, Low
Quiescent Current,
Adjustable Output Voltage
StepDown 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 A 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 A
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
A
Y
W
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb
Free Package
(Note: Microdot may be in either location)
1
5
DBPAYW
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