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TPS79801-Q1 参数 Datasheet PDF下载

TPS79801-Q1图片预览
型号: TPS79801-Q1
PDF下载: 下载PDF文件 查看货源
内容描述: 50毫安, 3 V至50 V ,微功耗,低压差线性稳压器 [50 mA, 3 V TO 50 V, MICROPOWER, LOW-DROPOUT LINEAR REGULATOR]
分类和应用: 稳压器
文件页数/大小: 21 页 / 591 K
品牌: TI [ TEXAS INSTRUMENTS ]
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TPS79801-Q1, TPS79850-Q1  
SLVS822D MARCH 2009REVISED AUGUST 2011  
www.ti.com  
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with  
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.  
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more  
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.  
ABSOLUTE MAXIMUM RATINGS(1)  
Over operating free-air temperature range (unless otherwise noted).  
IN(2)  
65 V to 60 V  
0.3 V to 28 V  
0.3 V to 7 V  
65 V to 60 V  
0.6 V < VIN  
60°C/W  
OUT  
VIN  
Input voltage range  
FB  
EN(2)  
Enable to IN differential  
JEDEC 51-5(3)  
JEDEC 51-7(4)  
θJA  
Thermal impedance, junction to free air  
130°C/W  
TJ  
Junction temperature range(5)  
Storage temperature range  
40°C to 125°C  
65°C to 150°C  
2000 V  
TSTG  
Human-Body Model (HBM)  
ESD rating  
Charged-Device Model (CDM)  
1000 V  
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings  
only, and functional operation of the device at these or any other conditions beyond those indicated is not implied. Exposure to  
absolute-maximum-rated conditions for extended periods may affect device reliability.  
(2) Transient: 500 ms for VIN > 50 V  
(3) The thermal data is based on using JEDEC 51-5. The copper pad is soldered to the thermal land pattern and using 5 by 8 thermal array  
(vias). Correct attachment procedure must be incorporated.  
(4) The thermal data is based on using JEDEC 51-7. The copper pad is soldered to the thermal land. No thermal vias. Correct attachment  
procedure must be incorporated.  
(5) The junction temperature must not exceed 125ºC. See Figure 1 to determine the maximum ambient operating temperature versus the  
supply voltage and load current. The safe operating area curves assume a 50ºC/W thermal impedance and may need to be adjusted to  
match actual system thermal performance.  
DISSIPATION RATINGS(1)  
DERATING FACTOR  
ABOVE TA = 25°C  
T
A 25°C  
TA = 70°C  
TA = 85°C  
BOARD  
PACKAGE  
RθJC  
RθJA  
POWER RATING POWER RATING POWER RATING  
High-K(2)  
DGN  
8.2°C/W  
60°C/W  
16.6 mW/°C  
1.83 W 1.08 W 0.833 W  
(1) See Thermal Considerations in the Applications Information section for more information related to thermal design.  
(2) The JEDEC High-K (1s) board design used to derive this data was a 4.5-inch x 3-inch, 2-layer board with 2-ounce copper traces on top  
of the board.  
RECOMMENDED OPERATING CONDITIONS  
MIN  
65  
MAX UNIT  
IN  
50  
OUT  
FB  
0.3  
0.3  
65  
28  
V
VIN  
Input voltage  
7
EN  
50  
IOUT  
TJ  
Output current  
Operating junction temperature(1) (2) (3)  
50  
125  
105  
mA  
°C  
40  
40  
TA  
Ambient free-air temperature  
°C  
(1) Operating conditions are limited by maximum junction temperature. The regulated output voltage specification does not apply for all  
possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be  
limited. When operating at maximum output current, the input voltage range must be limited.  
(2) The TPS798xxQ is specified to meet performance specifications from 40°C to 125°C operating junction temperature. Specifications  
over the full operating junction temperature range are specified by design, characterization, and correlation with statistical process  
controls.  
(3) This device includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction  
temperature exceeds 125°C (min) when overtemperature protection is active. Continuous operation above the specified maximum  
operating junction temperature may impair device reliability.  
2
Copyright © 20092011, Texas Instruments Incorporated  
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