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ST7809

更新时间： 2024-01-15 03:31:50
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器
页数 文件大小 规格书
3页 254K
描述
3-terminal 1 A positive voltage regulator

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中文翻译

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ST7809 数据手册

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ST 7809  
3-terminal 1 A positive voltage regulator  
Features  
• Output Current up to 1 A  
• Thermal Overload Protection  
• Short Circuit Protection  
• Output Transistor Safe Operating Area Protection  
TO-220 Plastic Package  
O
Absolute Maximum Ratings (Ta = 25 C)  
Parameter  
Symbol  
Value  
Unit  
Input Voltage  
VI  
35  
5
V
O
O
Thermal Resistance Junction-Cases  
Thermal Resistance Junction-Air  
Operating Temperature Range  
Storage Temperature Range  
RθJC  
RθJA  
TOPR  
TS  
C/W  
C/W  
65  
O
C
0 to + 125  
- 65 to + 150  
O
C
Electrical Characteristics  
O
O
(0 C < TJ < 125 C, IO = 500 mA, VI = 15 V, CI = 0.33 µF, CO = 0.1 µF, unless otherwise specified)  
Parameter  
Symbol  
Conditions  
Min. Typ. Max.  
Unit  
O
TJ = 25 C  
8.65  
9
9.35  
Output Voltage  
VO  
V
5 mA ≤ IO ≤ 1 A, PO ≤ 15 W  
8.6  
9
9.4  
VI = 11.5 V to 24 V  
VI = 11.5 V to 25 V  
-
-
-
-
180  
Line Regulation 1)  
Regline TJ = 25 C  
mV  
O
VI = 12 V to 17 V  
90  
IO = 5 mA to 1.5 A  
IO = 250 mA to 750 mA  
-
-
180  
Load Regulation 1)  
Regload TJ = 25 C  
mV  
mA  
mA  
O
-
-
90  
O
Quiescent Current  
IQ  
TJ = 25 C  
-
-
8
IO = 5 mA to 1 A  
VI = 12 V to 26 V  
-
-
0.5  
Quiescent Current Change  
ΔIQ  
-
-
1.3  
O
Output Voltage Drift  
Output Noise Voltage  
Ripple Rejection  
Dropout Voltage  
ΔVO/ΔT IO = 5 mA  
-
-1  
58  
-
-
-
-
-
-
-
-
mV/ C  
O
VN  
RR  
VDrop  
RO  
f = 10 Hz to 100 KHz, TA = 25 C  
-
µV  
dB  
V
f = 120 Hz, VI = 13 V to 23 V  
56  
-
O
IO = 1 A, TJ = 25 C  
2
Output Resistance  
Short Circuit Current  
Peak Current  
f = 1 KHz  
-
15  
250  
2.2  
mΩ  
mA  
A
O
ISC  
VI = 35 V, TA = 25 C  
-
O
IPK  
TJ = 25 C  
-
1) Load and line regulation are specified at constant junction temperature, Changes in Vo due to heating effects must be taken  
into account separately, Pulse testing with low duty is used.  
SEMTECH ELECTRONICS LTD.  
(Subsidiary of Sino-Tech International Holdings Limited, a company  
listed on the Hong Kong Stock Exchange, Stock Code: 724)  
®
Dated : 13/01/2007  
123

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