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LTC1798CS8-5#TRPBF PDF预览

LTC1798CS8-5#TRPBF

更新时间: 2024-11-20 13:09:43
品牌 Logo 应用领域
凌特 - Linear 电源电路参考电压源光电二极管
页数 文件大小 规格书
8页 153K
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LTC1798CS8-5#TRPBF 数据手册

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LTC1798 Series  
Micropower Low  
Dropout References  
U
DESCRIPTIO  
FEATURES  
The LTC®1798/LTC1798-2.5/LTC1798-3/LTC1798-4.1/  
LTC1798-5aremicropowerbandgapreferencesthatcom-  
bine high accuracy and low drift with very low supply  
currentandsmallpackagesize.Thecombinationofultralow  
quiescent current and low dropout voltage of only 200mV  
(max) makes them ideal for battery-powered equipment.  
The output voltage is set by an external resistor divider for  
the adjustable LTC1798.  
200mV Max Dropout at 10mA Output Current  
4µA Typical Quiescent Current  
0.15% Max Initial Accuracy  
No Output Capacitor Required  
Output Sources 10mA, Sinks 2mA  
40ppm/°C Max Drift  
Voltage Options: 2.5V, 3V, 4.1V, 5V and Adjustable  
U
This series of references uses curvature compensation to  
obtain low temperature coefficient and trimmed thin-film  
resistors to achieve high output accuracy. These refer-  
ences can source up to 10mA and sink up to 2mA, making  
them ideal for precision regulator applications. They are  
stable without an output bypass capacitor, but are also  
stablewithcapacitanceupto1µF.Thisfeatureisimportant  
incriticalapplicationswherePCboardspaceisapremium  
and fast settling is demanded.  
APPLICATIO S  
Battery-Powered Systems  
Handheld Instruments  
Precision Power Supplies  
A/D and D/A Converters  
The LTC1798 series references provided power dissipa-  
tion advantages over shunt references. In addition to  
supply current, shunt references must also idle the entire  
load current to operate.  
The LTC1798 series is available in the SO-8 package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
LTC1798-2.5 Temperature Drift  
4
2.5V Battery-Powered Reference  
3
2
LTC1798-2.5  
6
2
2.7V  
TO 12.6V  
IN  
2.5V  
OUT  
1
0.1µF  
0
GND  
4
1798 TA01  
–1  
–2  
–3  
–4  
–40 –20  
0
20  
40  
60  
80 100  
TEMPERATURE (°C)  
1798 TA02  
1

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