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參數資料
| 型號： | LD1117D33CTR |
| 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： | 1/38頁 |
| 文件大小： | 449K |
| 代理商： | LD1117D33CTR |
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December 2006
Rev. 20
1/38
38
LD1117 series
Low drop fixed and adjustable positive voltage regulators
Feature summary
■
Low dropout voltage (1V TYP.)
■
2.85V Device performances are suitable for
SCSI-2 active termination
■
Output current up to 800 mA
■
Fixed output voltage of: 1.2V, 1.8V, 2.5V,
2.85V, 3.0V, 3.3V, 5.0V
■
Adjustable version availability (V
rel
=1.25V)
■
Internal current and thermal limit
■
Available in ± 1% (at 25°C) and 2% in full
temperature range
■
Supply voltage rejection: 75dB (typ.)
Description
The LD1117 is a LOW DROP Voltage Regulator
able to provide up to 800mA 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,
3.0V 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, SO-8 and TO-220.
The SOT-223 and DPAK surface mount packages
optimize the thermal characteristics even offering
a relevant space saving effect. High efficiency is
assured by NPN pass transistor. In fact in this
case, unlike than PNP one, the Quiescent Current
flows mostly into the load. Only a very common
10μF minimum capacitor is needed for stability.
On chip trimming allows the regulator to reach a
very tight output voltage tolerance, within ± 1% at
25°C. The ADJUSTABLE LD1117 is pin to pin
compatible with the other standard. Adjustable
voltage
regulators
maintaining
performances in terms of Drop and Tolerance.
the
better
DPAK
SO-8
TO-220
SOT-223
www.st.com
Block diagram
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| LD1117DC-R | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LD1117D33TR | 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 |
| LD1117D50 | 功能描述:低壓差穩壓器 - LDO 5.0V 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 |
| LD1117D50C | 制造商:STMicroelectronics 功能描述: |
| LD1117D50CTR | 功能描述:低壓差穩壓器 - LDO Low drop fixed/adj positive voltage 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 |
| LD1117D50TR | 功能描述:低壓差穩壓器 - LDO 5.0V 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 |
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