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NCP1117ST20T3

更新时间： 2024-11-18 22:45:39
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安森美 - ONSEMI 稳压器
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16页 147K
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1.0 A Low-Dropout Positive Fixed and Adjustable Voltage Regulators

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NCP1117, NCV1117  
1.0 A Low−Dropout Positive  
Fixed and Adjustable  
Voltage Regulators  
The NCP1117 series are low dropout positive voltage regulators that  
are capable of providing an output current that is in excess of 1.0 A  
with a maximum dropout voltage of 1.2 V at 800 mA over  
temperature. This series contains eight fixed output voltages of 1.5 V,  
1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V that have no  
minimum load requirement to maintain regulation. Also included is an  
adjustable output version that can be programmed from 1.25 V to  
18.8 V with two external resistors. On chip trimming adjusts the  
reference/output voltage to within ±1.0% accuracy. Internal protection  
features consist of output current limiting, safe operating area  
compensation, and thermal shutdown. The NCP1117 series can  
operate with up to 20 V input. Devices are available in SOT−223 and  
DPAK packages.  
http://onsemi.com  
Tab  
SOT−223  
ST SUFFIX  
CASE 318H  
1
1 2 3  
3
(Top View)  
Pin: 1. Adjust/Ground  
2. Output  
3. Input  
Heatsink tab is connected to Pin 2.  
Tab  
Features  
• Output Current in Excess of 1.0 A  
• 1.2 V Maximum Dropout Voltage at 800 mA Over Temperature  
• Fixed Output Voltages of 1.5 V, 1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V,  
5.0 V, and 12 V  
DPAK  
DT SUFFIX  
CASE 369C  
1
2
3
1
3
(Top View)  
• Adjustable Output Voltage Option  
• No Minimum Load Requirement for Fixed Voltage Output Devices  
• Reference/Output Voltage Trimmed to ±1.0%  
• Current Limit, Safe Operating and Thermal Shutdown Protection  
• Operation to 20 V Input  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on pages 11 and 12 of this data sheet.  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 13 of this data sheet.  
• NCV Prefix for Automotive and Other Applications Requiring Site  
and Control Changes  
• Pb−Free Packages are Available  
Applications  
• Consumer and Industrial Equipment Point of Regulation  
• Active SCSI Termination for 2.85 V Version  
• Switching Power Supply Post Regulation  
• Hard Drive Controllers  
• Battery Chargers  
TYPICAL APPLICATIONS  
110 W  
110 W  
110 W  
3
2
NCP1117  
XT285  
Input  
Output  
2
3
NCP1117  
XTA  
18 to 27  
Lines  
+
+
22  
mF  
10  
mF  
Input  
Output  
+
+
10  
mF  
10  
3
NCP1117  
XTXX  
2
1
1
mF  
+
+
10  
mF  
10  
mF  
4.75 V  
to  
+
1
110 W  
5.25 V  
Figure 1. Fixed  
Output Regulator  
Figure 2. Adjustable  
Output Regulator  
Figure 3. Active SCSI Bus Terminator  
Semiconductor Components Industries, LLC, 2004  
1
Publication Order Number:  
July, 2004 − Rev. 11  
NCP1117/D  
1234567...16

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NCP1117ST20T3 替代型号

型号 品牌 替代类型 描述 数据表
NCP1117ST20T3G ONSEMI

完全替代

 1.0 A Low-Dropout Positive Fixed and Adjustable Voltage Regulators

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