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參數資料
| 型號： | LD1117BDT25TR |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| 中文描述： | 5.0放大器正電壓穩壓器 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 249K |
| 代理商： | LD1117BDT25TR |
1/17
October 2004
I
LOW DROPOUT VOLTAGE
(1.15V TYP. @ I
OUT
= 1A, 25°C)
VERY LOW QUIESCENT CURRENT
(5 mA TYP. @ 25°C)
OUTPUT CURRENT UP TO 1A
FIXED OUTPUT VOLTAGE OF: 1.2V, 1.8V,
2.5V, 2.85V, 3.3V, 5.0V
ADJUSTABLE VERSION AVAILABILITY
(V
rel
= 1.25V)
INTERNAL CURRENT AND THERMAL LIMIT
ONLY 10 μF FOR STABILITY
AVAILABLE IN ± 2% (AT 25°C) AND 4% IN
FULL TEMPERATURE RANGE
HIGH SUPPLY VOLTAGE REJECTION:
(80dB TYP. AT 25°C)
TEMPERATURE RANGE: 0°C TO 125°C
I
I
I
I
I
I
I
I
I
DESCRIPTION
The LD1117A is a LOW DROP Voltage Regulator
able to provide up to 1A of Output Current,
available even in adjustable version (Vref=1.25V).
Concerning fixed versions, are offered the
following Output Voltages: 1.2V, 1.8V, 2.5V,
2.85V, 3.3V and 5.0V. The 2.85V type is ideal for
SCSI-2 lines active termination. The device is
supplied in: SOT-223, DPAK and TO-220. The
surface mount packages optimize the thermal
characteristics even offering a relevant space
saving effect. High efficiency is assured by NPN
pass transistor. Only a very common 10μF
minimum capacitor is needed for stability. Only
chip trimming allows the regulator to reach a very
tight output voltage tolerance, within ± 2% at 25°C.
LD1117A
SERIES
LOW DROP FIXED AND ADJUSTABLE
POSITIVE VOLTAGE REGULATORS
Figure 1: Block Diagram
SOT-223
DPAK
TO-220
Rev. 12
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| LD1117ADT25TR | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| LD1117ADT28TR | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LD1117BDT28TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS |
| LD1117BDT33 | 功能描述:低壓差穩壓器 - LDO 3.3V 0.8A Positive 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 |
| LD1117BDT33TR | 功能描述:低壓差穩壓器 - LDO 3.3V 0.8A Positive 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 |
| LD1117BDT50TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS |
| LD1117BDT-R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS |
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