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參數(shù)資料
| 型號： | NCP5220MNR2G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3−in−1 PWM Dual Buck and Linear Power Controller |
| 中文描述： | 2 A SWITCHING CONTROLLER, 566 kHz SWITCHING FREQ-MAX, DSO20 |
| 封裝： | 6 X 5 MM, LEAD FREE, DFN-20 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 182K |
| 代理商： | NCP5220MNR2G |
Semiconductor Components Industries, LLC, 2004
November, 2004 Rev. 4
1
Publication Order Number:
NCP5220/D
NCP5220
3in1 PWM Dual Buck and
Linear Power Controller
The NCP5220 3in1 PWM a Dual Buck and Linear Power
Controller, is a complete power solution for MCH and DDR memory.
This IC combines the efficiency of PWM controllers for the VDDQ
supply and the MCH core supply voltage with the simplicity of linear
regulator for the VTT termination voltage.
This IC contains two synchronous PWM buck controller for driving
four external NCh FETs to form the DDR memory supply voltage
(VDDQ) and the MCH regulator. The DDR memory termination
regulator (VTT) is designed to track at the half of reference voltage
with sourcing and sinking current.
Protective features include, softstart circuitry, undervoltage
monitoring of 5VDUAL, BOOT voltage and thermal shutdown. The
device is housed in a thermal enhanced spacesaving DFN20
package.
Features
PbFree Package is Available*
Incorporates Synchronous PWM Buck Controllers for VDDQ and
VMCH
Integrated Power FETs with VTT Regulator Source/Sink up to 2.0 A
All External Power MOSFETs are NChannel
Adjustable VDDQ and VMCH by External Dividers
VTT Tracks at Half the Reference Voltage
Fixed Switching Frequency of 250 kHz for VDDQ and VMCH
Doubled Switching Frequency of 500 kHz for VDDQ Controller in
Standby Mode to Optimize Inductor Current Ripple and Efficiency
SoftStart Protection for All Controllers
Undervoltage Monitor of Supply Voltages
Overcurrent Protections for DDQ and VTT Regulators
Fully Complies with ACPI Power Sequencing Specifications
Short Circuit Protection Prevents Damage to Power Supply Due to
Reverse DIMM Insertion
Thermal Shutdown
5x6 DFN20 Package
Typical Applications
DDR I and DDR II Memory and MCH Power Supply
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
PIN CONNECTIONS
Device
Package
Shipping
ORDERING INFORMATION
NCP5220MNR2
DFN20
2500 Tape & Reel
NCP5220= Specific Device Code
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
MARKING
DIAGRAM
COMP
FBDDQ
SS
SW_DDQ
BG_DDQ
TG_DDQ
PGND
VTT
VDDQ
AGND
FBVTT
SLP_S5
FB1P5
BOOT
5VDUAL
COMP_1P5
SLP_S3
TG_1P5
BG_1P5
GND_1P5
DFN20
MN SUFFIX
CASE 505AB
1
20
NCP5220
AWLYYWW
1
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.
NOTE: Pin 21 is the thermal pad
on the bottom of the device.
NCP5220MNR2G
DFN20
(PbFree)
2500 Tape & Reel
http://onsemi.com
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| NCP5222 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual-Channel / Two-Phase Synchronous Buck Controller for Notebook Power System |
| NCP5222GEVB | 功能描述:電源管理IC開發(fā)工具 NCP5222 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP5222MNR2G | 功能描述:DC/DC 開關(guān)控制器 DUAL SYN BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK |
| NCP5228 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Synchronous Buck Controller with Auto Power Saving |
| NCP5228MNTWG | 制造商:ON Semiconductor 功能描述:Notebook DDR Controller |
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