参数资料
| 型号： | NCP5218MNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/31页 |
| 文件大小： | 0K |
| 描述： | IC DDR PWR CTLR 2IN2 NTBK 22-DFN |
| 产品变化通告： | Product Obsolescence 30/Sept/2009 |
| 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 |
| 输出电压： | 可调 |
| 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) |
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NCP5218
2?in?1 Notebook DDR
Power Controller
The NCP5218 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 V DDQ supply with the simplicity of linear
regulators for the V TT 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 supply
http://onsemi.com
MARKING
DIAGRAM
voltage (V DDQ ). The DDR memory termination regulator output
voltage (V TT ) and the buffered V REF are internally set to track at the
half of V DDQ . An internal power good voltage monitor tracks V DDQ
output and notifies the user whether the V DDQ output is within target
range. Protective features include soft ? start circuitries, undervoltage
1
22
DFN22
MN SUFFIX
CASE 506AF
1
NCP5218
AWLYYWW
G
monitoring of supply voltage, V DDQ overcurrent protection, V DDQ
overvoltage and undervoltage protections, and thermal shutdown.
The IC is packaged in DFN22.
Features
? Incorporates V DDQ , V TT Regulator, Buffered V REF
? Adjustable V DDQ Output
? V TT and V REF Track V DDQ /2
? Operates from Single 5.0 V Supply
? Supports V DDQ Conversion Rails from 4.5 V to 24 V
? Power ? saving Mode for High Efficiency at Light Load
? Integrated Power FETs with V TT Regulator Sourcing/Sinking
1.5 A DC and 2.4 A Peak Current
? Requires Only 20 m F Ceramic Output Capacitor for V TT
? Buffered Low Noise 15 mA V REF 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 V DDQ and V TT
? Undervoltage Monitor of Supply Voltage
? Overvoltage Protection and Undervoltage Protection for V DDQ
? Short ? circuit Protection for V DDQ and V TT
? 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)
NCP5218= Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb ? Free Package
PIN CONNECTIONS
VDDQEN PGND
V TTEN BGDDQ
FPWM VCCP
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 ?
NCP5218MNR2G 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, 2007
January, 2007 ? Rev. 0
1
Publication Order Number:
NCP5218/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5220 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:3−in−1 PWM Dual Buck and Linear Power Controller |
| NCP5220AMNR2 | 功能描述:DC/DC 开关控制器 3-in-1 PWM Dual Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP5220AMNR2G | 功能描述:DC/DC 开关控制器 ANA DDR PWER CNTRLR RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP5220MNR2 | 功能描述:DC/DC 开关控制器 3-in-1 PWM Dual Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP5220MNR2G | 功能描述:DC/DC 开关控制器 3-in-1 PWM Dual Buck Linear DDR RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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