参数资料
型号: NCP1580DR2
厂商: ON Semiconductor
文件页数: 1/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 8-SOIC
产品变化通告: Product Discontinuation 01/Oct/2008
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 412kHz
占空比: 95%
电源电压: 4.5 V ~ 13.2 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
NCP1580
Low Voltage Synchronous
Buck Controller
The NCP1580 is a voltage mode PWM controller designed to
operate from a 5.0 V or 12 V supply and produce 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. The NCP1580
has a fixed 350 kHz oscillator and soft?start function. The NCP1580
provides a 1.5 A floating gate driver design to drive N?Channel
MOSFETs in a synchronous configuration. Adaptive non?overlap
circuitry reduces switching losses by preventing simultaneous
http://onsemi.com
8
MARKING
DIAGRAM
conduction of both outputs. Protection features include thermal
shutdown and undervoltage lockout (UVLO). The NCP1580 is
available in an 8?pin SOIC package.
8
1
SOIC?8
D SUFFIX
CASE 751
1
1580
ALYW
Features
? Input Voltage Range from 4.5 V to 13.2 V
? 350 kHz Internal Oscillator
? Boost Pin Operates to 26.5 V
? Voltage Mode PWM Control
? 0.8 V $ 1.5% Internal Reference Voltage
? Adjustable Output Voltage
? Internal Soft?Start
? Internal 1.5 A Gate Drivers
? Adaptive Non?Overlap Circuit
? 90% Max Duty Cycle
? Input UVLO
? Overtemperature Protection
? Fully Specified over ?40 ° C to 85 ° C
? Pb?Free Package is Available
Applications
? Graphics Cards
? Desktop Computers
? Servers/Networking
? DSP and FPGA Power Supply
? DC?DC Regulator Modules
V IN
BST
TG
V CC
FB
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
PIN CONNECTIONS
BST 1 8 PHASE
TG 2 7 COMP
GND 3 6 FB
BG 4 5 V CC
(Top View)
ORDERING INFORMATION
Device Package Shipping ?
NCP1580DR2      SOIC?8   2500/Tape & Reel
NCP1580DR2G 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.
V OUT
SWN
COMP
BG GND
Figure 1. Typical Application Diagram
? Semiconductor Components Industries, LLC, 2005
January, 2005 ? Rev. 4
1
Publication Order Number:
NCP1580/D
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