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參數(shù)資料
型號(hào)： LD1117DTTR
廠商： 意法半導(dǎo)體
元件分類(lèi)： 基準(zhǔn)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(wěn)壓器
文件頁(yè)數(shù)： 1/38頁(yè)
文件大小： 449K
代理商： LD1117DTTR
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
相關(guān)PDF資料
PDF描述
LD1117S12CTR 5.0 AMP POSITIVE VOLTAGE REGULATOR
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LD1117S18CTR 5.0 AMP POSITIVE VOLTAGE REGULATOR
LD1117S25CTR 5.0 AMP POSITIVE VOLTAGE REGULATOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LD1117DTTR 制造商:STMicroelectronics 功能描述:Voltage Regulator IC
LD1117E 制造商:UTC-IC 制造商全稱(chēng):UTC-IC 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117F12 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117F12C 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
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