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NCP1523 Datasheet دیتاشیت PDF دانلود

دیتاشیت - ON Semiconductor - Adjustable Output Voltage Stepdown Converter

شماره قطعه NCP1523
شرح مفصل Adjustable Output Voltage Stepdown Converter
تولید کننده ON Semiconductor 
آرم ON Semiconductor 


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NCP1523 شرح
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NCP1523
3 MHz, 600 mA,
High−Efficiency, Adjustable
Output Voltage Stepdown
Converter
The NCP1523 stepdown PWM DCDC converter is optimized for
portable applications powered from 1cell Liion or 3cell
Alkaline/NiCd/NiMH batteries. The device is available in an
adjustable output voltage from 0.9 V to 2.3 V. It uses synchronous
rectification to increase efficiency and reduce external part count. The
device also has a builtin 3 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 softstart, cyclebycycle current
limiting, and thermal shutdown protection. The NCP1523 is available
in a space saving, 8 pin chip scale package.
Features
Up to 93% Efficiency
Sources up to 600 mA
3 MHz Switching Frequency
Adjustable Output Voltage from 0.9 V to 2.3 V
60 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
This is a PbFree Device*
Typical Applications
Cellular Phones, Smart Phones and PDAs
Digital Still Cameras
MP3 Players and Portable Audio Systems
Wireless and DSL Modems
Portable Equipment
VIN
A2 VIN
SW B1
L
http://onsemi.com
MARKING
DIAGRAM
NCP1523G
A1 AYWW
FLIPCHIP8
CASE 766AE
A1
A = Assembly Location
Y = Year
WW = Work Week
G = PbFree Package
A1 A2
B1 B2
C1 C3
D1 D2
Top View
(Bumps Below)
PIN:
A1 GND
A2 VIN
B1 SW
B2 EN
C1 GND
C2 ADJ
D1 VOUT
D2 FB
ORDERING INFORMATION
Device
Package
Shipping
NCP1523FCT2G FLIPCHIP8
(PbFree)
3000 /
Tape * Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
VOUT Brochure, BRD8011/D.
CIN C1
GND
VOUT D1
COUT
OFF ON
A1 GND
B2 EN
ADJ C2
FB D2
R1
Figure 1. NCP1523 Typical Applications
R2
*For additional information on our PbFree strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
August, 2006 Rev. 0
DataSheet4 U .com
1
Publication Order Number:
NCP1523/D

قانون اساسیصفحه 14
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