Datasheet > NCP5218

NCP5218

更新时间： 2024-11-23 04:37:55

品牌	Logo	应用领域
安森美 - ONSEMI		双倍数据速率控制器
页数	文件大小	规格书
31页	453K
描述
2−in−1 Notebook DDR Power Controller

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中文翻译

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NCP5218 数据手册

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

http://onsemi.com

controller for the V

supply with the simplicity of linear

DDQ

regulators for the V 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

MARKING

DIAGRAM

voltage (V

). The DDR memory termination regulator output

DDQ

DFN22

MN SUFFIX

CASE 506AF

voltage (V ) and the buffered V

are internally set to track at the

REF

NCP5218

AWLYYWW

half of V

. An internal power good voltage monitor tracks V

DDQ

output and notifies the user whether the V

range. Protective features include soft−start circuitries, undervoltage

monitoring of supply voltage, V overcurrent protection, V

output is within target

DDQ

overvoltage and undervoltage protections, and thermal shutdown.

The IC is packaged in DFN22.

NCP5218= Specific Device Code

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

Features

• Incorporates V

• Adjustable V

, V Regulator, Buffered V

TT REF

Output

DDQ

• V and V

Track V

DDQ

REF

• Operates from Single 5.0 V Supply

Conversion Rails from 4.5 V to 24 V

PIN CONNECTIONS

• Supports V

DDQ

VDDQEN

VTTEN

FPWM

VTTGND

VTT

PGND

BGDDQ

VCCP

• Power−saving Mode for High Efficiency at Light Load

• Integrated Power FETs with V Regulator Sourcing/Sinking

1.5 A DC and 2.4 A Peak Current

SWDDQ

TGDDQ

BOOST

OCDDQ

PGOOD

VTTREF

FBDDQ

COMP

• Requires Only 20 mF Ceramic Output Capacitor for V

• Buffered Low Noise 15 mA V

Output

REF

VTTI

• All External Power MOSFETs are N−channel

• <5.0 mA Current Consumption During Shutdown

• Fixed Switching Frequency of 400 kHz

FBVTT

AGND

DDQREF

VCCA

• Soft−start Protection for V

and V

DDQ

(Top View)

• Undervoltage Monitor of Supply Voltage

• Overvoltage Protection and Undervoltage Protection for V

• Short−circuit Protection for V

• Thermal Shutdown

• Housed in DFN22

• This is a Pb−Free Device

DDQ

NOTE: Pin 23 is the thermal pad on

the bottom of the device.

and V

DDQ

ORDERING INFORMATION

Device

NCP5218MNR2G

Package

Shipping†

2500 Tape & Reel

DFN22

Typical Applications

(Pb−Free)

• Notebook DDR/DDR2 Memory Supply and Termination Voltage

• Active Termination Busses (SSTL−18, SSTL−2, SSTL−3)

†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

Publication Order Number:

January, 2007 − Rev. 0

NCP5218/D

12 3 4 5 6 7...31

中文翻译

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与NCP5218相关器件

型号	品牌	获取价格	描述	数据表
NCP5218MNR2G	ONSEMI	获取价格	2−in−1 Notebook DDR Power Controller
NCP5220	ONSEMI	获取价格	3−in−1 PWM Dual Buck and Linear Power Controller
NCP5220A	ONSEMI	获取价格	3âinâ1 PWM Dual Buck and Linear Power Con
NCP5220AMNR2	ONSEMI	获取价格	3âinâ1 PWM Dual Buck and Linear Power Con
NCP5220AMNR2G	ROCHESTER	获取价格	2A SWITCHING CONTROLLER, 566kHz SWITCHING FREQ-MAX, DSO20, 6 X 5 MM, DFN-20
NCP5220AMNR2G	ONSEMI	获取价格	3âinâ1 PWM Dual Buck and Linear Power Con
NCP5220MNR2	ONSEMI	获取价格	3−in−1 PWM Dual Buck and Linear Power Controller
NCP5220MNR2G	ONSEMI	获取价格	3−in−1 PWM Dual Buck and Linear Power Controller
NCP5222	ONSEMI	获取价格	High Performance Dual-Channel / Two-Phase Synchronous Buck Controller for Notebook Power S
NCP5222MNR2G	ONSEMI	获取价格	High Performance Dual-Channel / Two-Phase Synchronous Buck Controller for Notebook Power S

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