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دیتاشیت - ON Semiconductor - (NCP1582 / NCP1583) Low Voltage Synchronous Buck Controller

شماره قطعه NCP1583
شرح مفصل (NCP1582 / NCP1583) Low Voltage Synchronous Buck Controller
تولید کننده ON Semiconductor 
آرم ON Semiconductor 


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NCP1583 شرح
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NCP1582, NCP1582A,
NCP1583
Low Voltage Synchronous
Buck Controllers
The NCP158x is a low cost PWM controller designed to operate from
a 5 V or 12 V supply. This device is capable of producing an output
voltage as low as 0.8 V. This 8−pin device provides an optimal level of
integration to reduce size and cost of the power supply. Features include a
0.7 A gate driver and an internally set 350 kHz (NCP1582, NCP1582A)
and a 300 kHz (NCP1583) oscillator. The NCP158x also incorporates an
externally compensated transconductance error amplifier and a
programmable soft−start function. Protection features include short
circuit protection (SCP) and under voltage lockout (UVLO). The
NCP158x comes in an 8−pin SOIC package.
Features
Input Voltage Range from 4.5 V to 13.2 V
350 kHz (NCP1582, NCP1582A), 300 kHz (NCP1583) Internal
Oscillator
Boost Pin Operates to 30 V
Voltage Mode PWM Control
0.8 V $1.5% Internal Reference Voltage
Adjustable Output Voltage
Programmable Soft−Start
Internal 0.7 A Gate Drivers
80% Max Duty Cycle
Input UVLO
RDS(on) Current Sensing for Short Circuit Protection
These are Pb−Free Devices
Applications
Graphics Cards
Desktop Computers
Servers/Networking
DSP and FPGA Power Supply
DC−DC Regulator Modules
VCC
BST
FB
VIN
COMP/DIS
TG
PHASE
VOUT
GND
BG
8
1
http://onsemi.com
MARKING DIAGRAM
8
SOIC−8
D SUFFIX
CASE 751
158x
ALYW
G
1
x = 2, 2A or 3
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Device
PIN CONNECTIONS
BST 1
8 PHASE
TG 2
GND 3
BG 4
7 COMP/DIS
6 FB
5 VCC
(Top View)
NCP158x
Series
NCP1582
NCP1582A
NCP1583
Oscillator
Frequency
350 kHz
350 kHz
300 kHz
SCP Trip Voltage
−350 mV
−450 mV
−350 mV
ORDERING INFORMATION
Device
Package
Shipping
NCP1582DR2G SOIC−8 2500/Tape & Reel
(Pb−Free)
NCP1582ADR2G SOIC−8 2500/Tape & Reel
(Pb−Free)
NCP1583DR2G SOIC−8 2500/Tape & Reel
(Pb−Free)
†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.
Figure 1. Typical Application Diagram
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 2
1
Publication Order Number:
NCP1582/D

قانون اساسیصفحه 16
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