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L7852CT1 参数 Datasheet PDF下载

L7852CT1图片预览
型号: L7852CT1
PDF下载: 下载PDF文件 查看货源
内容描述: 正电压稳压器 [Positive voltage regulators]
分类和应用: 稳压器
文件页数/大小: 52 页 / 1803 K
品牌: STMICROELECTRONICS [ ST ]
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L78xx - L78xxC  
Electrical characteristics  
Table 6.  
Electrical characteristics of L7808 (refer to the test circuits, T = -55 to 150°C, V = 14V, I  
J
I
O
= 500 mA, C = 0.33 µF, C = 0.1 µF unless otherwise specified)  
I
O
Symbol  
Parameter  
Test conditions  
Min.  
Typ.  
Max.  
Unit  
VO  
Output voltage  
TJ = 25°C  
7.7  
8
8.3  
V
IO = 5 mA to 1A, PO 15 W  
VO  
Output voltage  
Line regulation  
7.6  
8
8.4  
V
VI = 11.5 to 23 V  
VI = 10.5 to 25 V, TJ = 25°C  
VI = 11 to 17 V, TJ = 25°C  
80  
40  
(1)  
ΔVO  
mV  
I
O = 5 mA to 1.5 A, TJ = 25°C  
100  
40  
(1)  
ΔVO  
Load regulation  
mV  
mA  
mA  
IO = 250 to 750 mA, TJ = 25°C  
TJ = 25°C  
Id  
Quiescent current  
6
I
O = 5 mA to 1 A  
0.5  
0.8  
ΔId  
Quiescent current change  
VI = 11.5 to 25 V  
ΔVO/ΔT Output voltage drift  
IO = 5 mA  
1
mV/°C  
µV/VO  
dB  
eN  
SVR  
Vd  
Output noise voltage  
Supply voltage rejection  
Dropout voltage  
B =10 Hz to 100 KHz, TJ = 25°C  
VI = 11.5 to 21.5 V, f = 120 Hz  
IO = 1 A, TJ = 25°C  
f = 1 KHz  
40  
62  
2
2.5  
V
RO  
Isc  
Output resistance  
16  
mΩ  
A
Short circuit current  
VI = 35 V, TJ = 25°C  
0.75  
2.2  
1.2  
3.3  
Iscp  
Short circuit peak current TJ = 25°C  
1.3  
A
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 cycle is used.  
13/52  
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