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G1117T43U 参数 Datasheet PDF下载

G1117T43U图片预览
型号: G1117T43U
PDF下载: 下载PDF文件 查看货源
内容描述: 1A可调低压差线性稳压器 [1A Adjustable Low-Dropout Linear Regulator]
分类和应用: 稳压器
文件页数/大小: 9 页 / 294 K
品牌: GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
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Global Mixed-mode Technology Inc.
Definitions
Output Voltage
The G1117 provides an adjustable output voltage from
1.25V to 5V. With two external resistors. It can be for-
mulated as:
V
OUT
= 1.25V x
(
1+
I
ADJ
= 80µA (TYP.)
Dropout Voltage
The input/output Voltage differential at which the
regulator output no longer maintains regulation against
further reductions in input voltage. Measured when the
output drops 2% below its nominal value. Dropout
voltage is affected by junction temperature, load cur-
rent and minimum input supply requirements.
Line Regulation
The change in output voltage for a change in input
R
2
R
1
G1117
voltage. The measurement is made under conditions
of low dissipation or by using pulse techniques such
that average chip temperature is not significantly af-
fected.
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measure-
ment is made under conditions of low dissipation or by
using pulse techniques such that average chip tem-
perature is not significantly affected.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
)
+ I
ADJ
x R
2
Ver: 1.9
Mar 07, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
3