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器件3D模型￥ 0.948
LD1117D33 数据手册 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
分类:
稳压芯片
封装:
SOIC-8
描述:
低压降固定和可调正电压调节器 LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P6Hot
典型应用电路图在P21P22P23
原理图在P5P8
封装尺寸在P25P26P27P28P29P30P31P32P33P34P35
封装信息在P36P37P38P39P40P41P42
技术参数、封装参数在P7P44
应用领域在P44
电气规格在P9P10P11P12P13P14P15P16P17P18P19P20
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LD1117D33数据手册
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This is information on a product in full production.
November 2013 DocID2572 Rev 33 1/44
44
LD1117
Adjustable and fixed low drop positive voltage regulator
Datasheet
-
production data
Features
• Low dropout voltage (1 V typ.)
• 2.85 V device performances are suitable for
SCSI-2 active termination
• Output current up to 800 mA
• Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V,
3.3 V, 5.0 V
• Adjustable version availability (V
REF
= 1.25 V)
• Internal current and thermal limit
• Available in ± 1 % (at 25 °C) and 2 % in full
temperature range
• Supply voltage rejection: 75 dB (typ.)
Description
The LD1117 is a low drop voltage regulator able
to provide up to 800 mA of output current,
available even in adjustable version (V
REF
=
1.25 V). Concerning fixed versions, are offered
the following output voltages: 1.2 V, 1.8 V, 2.5 V,
2.85 V, 3.3 V and 5.0 V. 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
10 µF 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 the better
performances in terms of drop and tolerance.
TO-220
DPAK
SOT-223
SO-8
www.st.com
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