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參數(shù)資料
| 型號： | NCP5218 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 2−in−1 Notebook DDR Power Controller |
| 文件頁數(shù)： | 1/31頁 |
| 文件大?。?/td> | 463K |
| 代理商： | NCP5218 |
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Semiconductor Components Industries, LLC, 2007
January, 2007
Rev. 0
1
Publication Order Number:
NCP5218/D
NCP5218
2in1 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
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
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 F Ceramic Output Capacitor for V
TT
Buffered Low Noise 15 mA V
REF
Output
All External Power MOSFETs are N
channel
<5.0 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)
DFN22
MN SUFFIX
CASE 506AF
PIN CONNECTIONS
Device
Package
Shipping
ORDERING INFORMATION
NCP5218MNR2G
DFN22
(Pb
Free)
2500 Tape & Reel
NCP5218= Specific Device Code
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
= Pb
Free Package
MARKING
DIAGRAM
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.
http://onsemi.com
VDDQEN
VTTEN
FPWM
SS
VTTGND
VTT
VTTI
FBVTT
AGND
DDQREF
VCCA
PGND
BGDDQ
VCCP
SWDDQ
TGDDQ
BOOST
OCDDQ
PGOOD
VTTREF
FBDDQ
COMP
(Top View)
NOTE: Pin 23 is the thermal pad on
the bottom of the device.
NCP5218
AWLYYWW
1
1
22
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NCP5218MNR2G | 功能描述:電壓模式 PWM 控制器 2IN1 NOTEBK DDR CNTL RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| NCP5220 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:3−in−1 PWM Dual Buck and Linear Power Controller |
| NCP5220AMNR2 | 功能描述:DC/DC 開關控制器 3-in-1 PWM Dual Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| NCP5220AMNR2G | 功能描述:DC/DC 開關控制器 ANA DDR PWER CNTRLR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| NCP5220MNR2 | 功能描述:DC/DC 開關控制器 3-in-1 PWM Dual Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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