参数资料
型号: NCP5214AMNR2G
厂商: ON Semiconductor
文件页数: 1/31页
文件大小: 0K
描述: IC CTLR NOTEBOOK DDR PWR 22-DFN
产品变化通告: Product Discontinuation 01/Oct/2008
标准包装: 2,500
应用: 控制器,DDR
输入电压: 4.5 V ~ 24 V
输出数: 2
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 22-VFDFN 裸露焊盘
供应商设备封装: 22-DFN(6x5)
包装: 带卷 (TR)
NCP5214A
2?in?1 Notebook DDR
Power Controller
The NCP5214A 2?in?1 Notebook DDR Power Controller is
specifically designed as a total power solution for notebook DDR
memory system. This IC combines the efficiency of a PWM
controller for the VDDQ supply with the simplicity of linear
regulators for the VTT termination voltage and the buffered low
noise reference. This IC contains a synchronous PWM buck
controller for driving two external NFETs to form the DDR memory
http://onsemi.com
MARKING
DIAGRAM
supply voltage (VDDQ). The DDR memory termination regulator
output voltage (VTT) and the buffered VREF are internally set to
track at the half of VDDQ. An internal power good voltage monitor
tracks VDDQ output and notifies the user whether the VDDQ output
is within target range. Protective features include soft?start
1
22
DFN22
MN SUFFIX
CASE 506AF
1
NCP5214A
AWLYYWW
G
circuitries, undervoltage monitoring of supply voltage, VDDQ
overcurrent protection, VDDQ overvoltage and undervoltage
protections, and thermal shutdown. The IC is packaged in DFN22.
NCP5214A= Specific Device Code
A = Assembly Location
Features
? Incorporates VDDQ, VTT Regulator, Buffered VREF
? Adjustable VDDQ Output
? VTT and VREF Track VDDQ/2
? Operates from Single 5.0 V Supply
? Supports VDDQ Conversion Rails from 4.5 V to 24 V
? Power?saving Mode for High Efficiency at Light Load
? Integrated Power FETs with VTT Regulator Sourcing/Sinking
1.5 A DC and 2.4 A Peak Current
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb?Free Package
PIN CONNECTIONS
VDDQEN
V TTEN
FPWM
PGND
BGDDQ
VCCP
? Requires Only 20 m F Ceramic Output Capacitor for VTT
? Buffered Low Noise 15 mA VREF Output
? All External Power MOSFETs are N?channel
? <5.0 m A Current Consumption During Shutdown
? Fixed Switching Frequency of 400 kHz
? Soft?start Protection for VDDQ and VTT
? Undervoltage Monitor of Supply Voltage
? Overvoltage Protection and Undervoltage Protection for VDDQ
? Short?circuit Protection for VDDQ and VTT
? Thermal Shutdown
? Housed in DFN22
? This is a Pb?Free Device
Typical Applications
? Notebook DDR/DDR2 Memory Supply and Termination Voltage
? Active Termination Busses (SSTL?18, SSTL?2, SSTL?3)
SS SWDDQ
VTTGND TGDDQ
VTT BOOST
VTTI OCDDQ
FBVTT PGOOD
AGND VTTREF
DDQREF FBDDQ
VCCA COMP
(Top View)
NOTE: Pin 23 is the thermal pad on
the bottom of the device.
ORDERING INFORMATION
Device Package Shipping ?
NCP5214AMNR2G DFN22 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 Specification
Brochure, BRD8011/D.
? Semiconductor Components Industries, LLC, 2006
May, 2006 ? Rev. 0
1
Publication Order Number:
NCP5214A/D
相关PDF资料
PDF描述
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