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MC33761SNT1-025 PDF预览

MC33761SNT1-025

更新时间： 2024-01-09 15:32:00
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器
页数 文件大小 规格书
13页 408K
描述
Ultra Low−Noise Low Dropout Voltage Regulator with 1.0 V ON/OFF Control

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MC33761SNT1-025 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOT-23
包装说明：LEAD FREE, THIN SOT-23, 5 PIN针数：5
Reach Compliance Code：unknown风险等级：5.68
最大回动电压 1：0.25 V最大输入电压：12 V
最小输入电压：3.5 VJESD-30 代码：R-PDSO-G5
JESD-609代码：e3长度：3 mm
湿度敏感等级：NOT SPECIFIED功能数量：1
端子数量：5工作温度TJ-Max：125 °C
最大输出电流 1：0.1 A最大输出电压 1：2.575 V
最小输出电压 1：2.425 V标称输出电压 1：2.5 V
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：1.1 mm表面贴装：YES
端子面层：MATTE TIN端子形式：GULL WING
端子节距：0.95 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：1.5 mm
Base Number Matches：1

MC33761SNT1-025 数据手册

 浏览型号MC33761SNT1-025的Datasheet PDF文件第3页浏览型号MC33761SNT1-025的Datasheet PDF文件第4页浏览型号MC33761SNT1-025的Datasheet PDF文件第5页浏览型号MC33761SNT1-025的Datasheet PDF文件第7页浏览型号MC33761SNT1-025的Datasheet PDF文件第8页浏览型号MC33761SNT1-025的Datasheet PDF文件第9页 
MC33761  
APPLICATION HINTS  
Protections  
Input Decoupling  
As with any regulator, it is necessary to reduce the  
dynamic impedance of the supply rail that feeds the  
component. A 1.0 mF capacitor either ceramic or tantalum is  
recommended and should be connected close to the  
MC33761 package. Higher values will correspondingly  
improve the overall line transient response.  
The MC33761 hosts several protections, giving natural  
ruggedness and reliability to the products implementing the  
component. The output current is internally limited to a  
maximum value of 180 mA typical while temperature  
shutdown occurs if the die heats up beyond 125°C. These  
values let you assess the maximum differential voltage the  
device can sustain at a given output current before its  
protections come into play.  
Output Decoupling  
Thanks to a novel concept, the MC33761 is a stable  
component and does not require any specific Equivalent  
Series Resistance (ESR) neither a minimum output current.  
Capacitors exhibiting ESRs ranging from a few mW up to  
3.0 W can thus safely be used. The minimum decoupling  
value is 1.0 mF and can be augmented to fulfill stringent load  
transient requirements. The regulator accepts ceramic chip  
capacitors as well as tantalum devices.  
The maximum dissipation the package can handle is given  
by:  
T
* T  
Jmax  
R
A
P
+
max  
qJA  
If T  
is limited to 125°C, then the MC33761 can  
Jmax  
dissipate up to 470 mW @ 25°C. The power dissipated by  
the MC33761 can be calculated from the following formula:  
Noise Decoupling  
) ) ǒV  
Ǔ
Ptot + ǒVin  
out Ǔ  
  I  
(I  
* V  
  I  
out  
out  
gnd  
in  
Unlike other LDOs, the MC33761 is a true low−noise  
regulator. Without the need of an external bypass capacitor,  
it typically reaches the incredible level of 40 mVRMS overall  
noise between 100 Hz and 100 kHz. To give maximum  
insight on noise specifications, ON Semiconductor includes  
spectral density graphics. The classical bypass capacitor  
impacts the start−up phase of standard LDOs. However,  
thanks to its low−noise architecture, the MC33761 operates  
without a bypass element and thus offers a typical 40 ms  
start−up phase.  
or  
Ptot ) V  
  I  
out  
out  
Vin  
+
max  
I
) I  
out  
gnd  
If a 80 mA output current is needed, the ground current is  
extracted from the data−sheet curves: 4.0 mA @ 80 mA. For  
a MC33761SNT1−28 (2.8 V) delivering 80 mA and  
operating at 25°C, the maximum input voltage will then be  
8.3 V.  
Typical Applications  
The following picture portrays the typical application of  
the MC33761.  
http://onsemi.com  
6
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