參數(shù)資料
型號(hào): NCP1501DMR2G
廠商: ON Semiconductor
文件頁(yè)數(shù): 7/14頁(yè)
文件大?。?/td> 359K
描述: IC REG SGL BUCK/LINEAR 8MICRO
產(chǎn)品變化通告: Product Obsolescence 01/Jul/2009
標(biāo)準(zhǔn)包裝: 1
拓?fù)洌?/td> 降壓(降壓)(1),線性(LDO)(1)
功能: 任何功能
輸出數(shù): 1
頻率 - 開(kāi)關(guān): 500kHz ~ 1MHz
電壓/電流 - 輸出 1: 1.05V,1.35V,1.57V,1.8V,-
帶 LED 驅(qū)動(dòng)器: 無(wú)
帶監(jiān)控器: 無(wú)
帶序列發(fā)生器: 無(wú)
電源電壓: 2.7 V ~ 5.2 V
工作溫度: -30°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: Micro8?
包裝: 剪切帶 (CT)
其它名稱(chēng): NCP1501DMR2GOSCT
NCP1501
http://onsemi.com
7
VoltageOutputSelection
The output voltage selection is accomplished via two
externalpins:CB0andCB1.IfCB0andCB1pinsareleft
floating by the external circuit, the output voltage will
defaultto1.35V.Thecorrespondingvoltagesareasfollows.
CB0
CB1
NCP1501
V
out
(V)
0
0
1.05
0
1
1.35
1
1
1.57
1
0
1.80
Figure6.TransitionWaveformsfrom
LDOtoPWMMode
V
in
0
3.0
0
0
10
ExternalSYNCSignal
InternalCLKSignal
TIME(m)
1.35V
Figure7.PowerUpandPowerDownSequence
1.8V
1.05V
1.57V
V
in
SHD
V
O
CB0
CB1
ThermalShutdown
Internal Thermal Shutdown circuitry is provided to
protecttheintegratedcircuitintheeventthatthemaximum
junctiontemperatureisexceeded.Whenactivated,typically
at160癈,thePWMlatchisresetandthelinearregulator
controlcircuitryisdisabled.Thethermalshutdowncircuit
isdesignedwith25癈ofhysteresis.Thismeansthatthe
PWMlatchandtheregulatorcontrolcircuitrycannotbe
re--enableduntilthedietemperaturedropsbythisamount.
Thisfeatureisprovidedtopreventcatastrophicfailuresfrom
accidental device overheating. It is not intended as a
substitute for proper heatsinking. The NCP1501 is
containedintheMicro--8package.
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