參數(shù)資料
型號(hào)： NCP5425
廠商： ON SEMICONDUCTOR
英文描述： Dual Synchronous Buck Controller
中文描述： 雙同步降壓控制器
文件頁(yè)數(shù)： 1/22頁(yè)
文件大?。?/td> 155K
代理商： NCP5425
Semiconductor Components Industries, LLC, 2005
January, 2005 Rev. 6
1
Publication Order Number:
NCP5425/D
NCP5425
Dual Synchronous
Buck Controller
The NCP5425 is a highly flexible dual buck controller with internal
gate drivers that can be used with two input power supplies and one or
two outputs in multiple configurations. The part contains all the
circuitry required for two independent synchronous dual NFET buck
regulators utilizing a feed forward voltage mode control method. The
NCP5425 can run from a single supply ranging from 4.6 to 12 volts
and support a single two phase or dual single phase outputs. When
used as a dual output controller, the second output tracks voltage
transients from the first. Power blanking for low noise applications is
supported as well as independent cyclebycycle current limiting. The
part is available in a 20 pin TSSOP package allowing the designer to
minimize PCB area.
Features
Operation Over 4.6 to 13.2 Volts
Dual Synchronous Buck Design
Configurable as a Single Two Phase Output or Two Single Phase
Outputs
Programmable Power Sharing and Budgeting from Two Independent
Supplies
0.8 Volt
1% Reference for Low Voltage Outputs
1.5 A Peak Power Drive
Switch Blanking for Noise Sensitive Applications through use of
R
OSC
Pin
Programmable Frequency, 150 kHz to 750 kHz Operation
Programmable Soft Start
CyclebyCycle Overcurrent Protection
Independent Programmable Current Limits
100% Duty Cycle for Fast Transient Response
Internal Slope Compensation
OutofPhase Synchronization between the Controllers
Input Undervoltage Lockout
On/Off Enable through use of the COMP Pins
Power Supply Sequencing
Applications
DDR Memory Power
Graphics Cards
NCP5425DBR2
A
WL = Wafer Lot
Y
= Year
WW = Work Week
= Assembly Location
Device
Package
Shipping
ORDERING INFORMATION
NCP5425DB
TSSOP20
61 Units/Rail
TSSOP20
2500 Units/Reel
PIN CONNECTIONS AND
MARKING DIAGRAM
TSSOP20
DB SUFFIX
CASE 948E
1
20
1
20
GATEH1
GATEL1
GND
BST
NC
NC
IS+1
IS1
V
FB1
COMP1
GATEH2
GATEL2
V
CC
R
MODE
IS2
IS+2
V
REF2
V
FB2
COMP2
NCP
5425
AWLYWW
http://onsemi.com
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.
相關(guān)PDF資料
PDF描述
NCP5425DB Dual Synchronous Buck Controller
NCP5425DBR2 Dual Synchronous Buck Controller
NCP5426SN13T1 LDO Regulator/Vibration Motor Driver
NCP5426SN13T2 LDO Regulator/Vibration Motor Driver
NCP5426SN13T2G LDO Regulator/Vibration Motor Driver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP5425/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Synchronous Buck Controller
NCP5425_06 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Dual Synchronous Buck Controller
NCP5425DB 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual Synchronous RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
NCP5425DBG 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual Synchronous Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
NCP5425DBR2 功能描述:DC/DC 開(kāi)關(guān)控制器 Dual Synchronous RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
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