參數(shù)資料
型號(hào)： NCP1571
廠商： ON SEMICONDUCTOR
英文描述： Low Voltage Synchronous Buck Controller
中文描述： 低電壓同步降壓控制器
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 104K
代理商： NCP1571
Semiconductor Components Industries, LLC, 2004
October, 2004 Rev. 4
1
Publication Order Number
NCP1571/D
NCP1571
Low Voltage Synchronous
Buck Controller
The NCP1571 is a low voltage buck controller. It provides the
control for a DCDC power solution producing an output voltage as
low as 0.980 V over a wide current range. The NCP1571based
solution is powered from 12 V with the output derived from a 27 V
supply. It contains all required circuitry for a synchronous NFET buck
regulator using the V
2
control method to achieve the fastest possible
transient response and best overall regulation. NCP1571 operates at a
fixed internal 200 kHz frequency and is packaged in an SOIC8.
This device provides undervoltage lockout protection, SoftStart,
Power Good with delay, and builtin adaptive nonoverlap. During
undervoltage lockout, the NCP1571 controller allows the power
supply output to drift down, allowing the load time to shut off. This
operation distinguishes the NCP1571 from other parts in its family.
Features
PbFree Package is Available
0.980 V
±
1.0% Reference Voltage
V
2
Control Topology
200 ns Transient Response
Programmable SoftStart
Power Good
Programmable Power Good Delay
40 ns Gate Rise and Fall Times (3.3 nF Load)
Adaptive FET NonOverlap Time
Fixed 200 kHz Oscillator Frequency
Undervoltage Lockout Holds Both Gate Outputs Low
On/Off Control Through Use of the COMP Pin
Overvoltage Protection through Synchronous MOSFETs
Synchronous NChannel Buck Design
Dual Supply, 12 V Control, 27 V Power Source
SOIC8
D SUFFIX
CASE 751
A
L
Y
W
= Assembly Location
= Wafer Lot
= Year
= Work Week
GATE(H)
COMP
1
8
GATE(L)
PGDELAY
V
FB
PWRGD
GND
V
CC
PIN CONNECTIONS
1
8
1571
ALYW
1
8
http://onsemi.com
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Device
Package
Shipping
ORDERING INFORMATION
NCP1571D
SOIC8
98 Units/Rail
NCP1571DR2
SOIC8
2500 Tape & Reel
NCP1571DR2G
SOIC8
(PbFree)
2500 Tape & Reel
MARKING
DIAGRAM
相關(guān)PDF資料
PDF描述
NCP1571D Low Voltage Synchronous Buck Controller
NCP1571DR2 Low Voltage Synchronous Buck Controller
NCP1571DR2G Low Voltage Synchronous Buck Controller
NCP1575DR2G Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency
NCP1575 Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency(具有可調(diào)開(kāi)關(guān)頻率的低壓同步降壓控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP1571D 功能描述:DC/DC 開(kāi)關(guān)控制器 Low Voltage 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
NCP1571DG 功能描述:DC/DC 開(kāi)關(guān)控制器 Low Voltage 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
NCP1571DR2 功能描述:DC/DC 開(kāi)關(guān)控制器 Low Voltage 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
NCP1571DR2G 功能描述:DC/DC 開(kāi)關(guān)控制器 Low Voltage 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
NCP1573D 制造商:Rochester Electronics LLC 功能描述:- Bulk
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