Datasheet 搜索 > 稳压芯片 > ST Microelectronics（意法半导体） > LD1117S50CTR 数据手册 > LD1117S50CTR 其他数据使用手册 1/41 页
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LD1117S50CTR 其他数据使用手册 - 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:
TO-261-4
描述:
STMICROELECTRONICS LD1117S50CTR 固定电压稳压器, LDO, 6.5V至15V, 1.1V压差, 5V输出, 800mA输出, SOT-223-3
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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P25P26P27P28P29P30P31P32P33P34P35P36
技术参数、封装参数在P7
应用领域在P41
电气规格在P9P10P11P12P13P14P15P16P17P18P19P20
型号编号列表在P1
导航目录
LD1117S50CTR数据手册
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This is information on a product in full production.
October 2012 Doc ID 2572 Rev 32 1/41
41
LD1117xx
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 2.85 V 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
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.
DPAK
SO-8
TO-220
SOT-223
Table 1. Device summary
Part numbers
LD1117XX12 LD1117XX25 LD1117XX50
LD1117XX12C LD1117XX25C LD1117XX50C
LD1117XX18 LD1117XX33 LD1117XX
LD1117XX18C LD1117XX33C LD1117XXC
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