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參數資料
| 型號： | LM1117DT-2.5 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower 5V, 100mA Low Dropout Linear Regulator |
| 中文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSSO2 |
| 封裝： | TO-252, 3 PIN |
| 文件頁數： | 1/21頁 |
| 文件大小： | 535K |
| 代理商： | LM1117DT-2.5 |
LM1117/LM1117I
800mA Low-Dropout Linear Regulator
General Description
The LM1117 is a series of low dropout voltage regulators
with a dropout of 1.2V at 800mA of load current. It has the
same pin-out as National Semiconductor’s industry standard
LM317.
The LM1117 is available in an adjustable version, which can
set the output voltage from 1.25V to 13.8V with only two
external resistors. In addition, it is also available in five fixed
voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.
The LM1117 offers current limiting and thermal shutdown. Its
circuit includes a zener trimmed bandgap reference to as-
sure output voltage accuracy to within ±1%.
The LM1117 series is available in LLP, TO-263, SOT-223,
TO-220, and TO-252 D-PAK packages. A minimum of 10F
tantalum capacitor is required at the output to improve the
transient response and stability.
Features
n
Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
Versions
n
Space Saving SOT-223 and LLP Packages
n
Current Limiting and Thermal Protection
n
Output Current
800mA
n
Line Regulation
0.2% (Max)
n
Load Regulation
0.4% (Max)
n
Temperature Range
— LM1117
0C to 125C
— LM1117I
40C to 125C
Applications
n
2.85V Model for SCSI-2 Active Termination
n
Post Regulator for Switching DC/DC Converter
n
High Efficiency Linear Regulators
n
Battery Charger
n
Battery Powered Instrumentation
Typical Application
Active Terminator for SCSI-2 Bus
10091905
Fixed Output Regulator
10091928
June 2004
LM1
1
17/LM1
1
17I
800mA
Low-Dropout
Linear
Regulator
2004 National Semiconductor Corporation
DS100919
www.national.com
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PDF描述 |
|---|---|
| LM1117DT-2.85 | Micropower 5V, 100mA Low Dropout Linear Regulator |
| LM1117DT-3.3 | Micropower 5V, 100mA Low Dropout Linear Regulator |
| LP2951CSD-3.3 | Series of Adjustable Micropower Voltage Regulators |
| LP2951CSDX | Series of Adjustable Micropower Voltage Regulators |
| LP3876ES-1.8 | 3A Fast Ultra Low Dropout Linear Regulators |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM1117DT-3.3 | 功能描述:低壓差穩壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM1117DT-3.3 | 制造商:Texas Instruments 功能描述:V REG LDO +3.3V SMD 1117 DPAK-3 |
| LM1117DT-3.3/NOPB | 功能描述:低壓差穩壓器 - LDO 800MA LDO LINEAR REG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM1117DT-3.3/NOPB | 制造商:Texas Instruments 功能描述:Linear Voltage Regulator IC |
| LM1117DT-3.3NOPB | 制造商:Texas Instruments 功能描述:Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SIP |
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