参数资料
| 型号： | NCP5220MNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC CTLR PWM DUAL BUCK PWR 20-DFN |
| 产品变化通告： | Product Obsolescence 24/Jan/2011 |
| 标准包装： | 1 |
| 应用： | 控制器，DDR |
| 输入电压： | 5 V ~ 12 V |
| 输出数： | 2 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFDFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（6x5） |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP5220MNR2GOSCT |
NCP5220
3?in?1 PWM Dual Buck and
Linear Power Controller
The NCP5220 3?in?1 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
http://onsemi.com
MARKING
four external N?Ch 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, soft?start circuitry, undervoltage
monitoring of 5VDUAL, BOOT voltage and thermal shutdown. The
device is housed in a thermal enhanced space?saving DFN?20
20
1
DFN?20
MN SUFFIX
CASE 505AB
1
DIAGRAM
NCP5220
AWLYYWW
package.
NCP5220 = Specific Device Code
Features
? Pb?Free Package is Available*
? Incorporates Synchronous PWM Buck Controllers for VDDQ and
VMCH
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
?
?
?
?
?
?
Integrated Power FETs with VTT Regulator Source/Sink up to 2.0 A
All External Power MOSFETs are N?Channel
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
COMP
FBDDQ
SS
PGND
VTT
PIN CONNECTIONS
SW_DDQ
BG_DDQ
TG_DDQ
BOOT
5VDUAL
?
?
?
?
?
?
?
Standby Mode to Optimize Inductor Current Ripple and Efficiency
Soft?Start 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 DFN?20 Package
VDDQ COMP_1P5
AGND SLP_S3
FBVTT TG_1P5
SLP_S5 BG_1P5
FB1P5 GND_1P5
NOTE: Pin 21 is the thermal pad
on the bottom of the device.
ORDERING INFORMATION
Typical Applications
? DDR I and DDR II Memory and MCH Power Supply
Device
NCP5220MNR2
NCP5220MNR2G
Package
DFN?20
DFN?20
Shipping ?
2500 Tape & Reel
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.
*For additional information on our Pb?Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
? Semiconductor Components Industries, LLC, 2004
November, 2004 ? Rev. 4
1
Publication Order Number:
NCP5220/D
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| NCP5222 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:High Performance Dual-Channel / Two-Phase Synchronous Buck Controller for Notebook Power System |
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| NCP5222MNR2G | 功能描述:DC/DC 开关控制器 DUAL SYN BUCK CONTROLLER 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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