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LP8340 bảng dữ liệu(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LP8340
Giải thích chi tiết về linh kiện  Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
PDF  14 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LP8340 bảng dữ liệu(HTML) 6 Page - National Semiconductor (TI)

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LP8340I Electrical Characteristics (Continued)
Unless otherwise specified all limits guaranteed for V
IN =VO+ 1V, CIN =COUT = 10µF, TJ = 25˚C. Boldface limits apply over
the full operating temperature range of T
J = −40˚C to 125˚C
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Units
V
OUT
Output Voltage
LP8340-ADJ, ADJ = OUT
I
OUT = 10mA, VIN = 2.7V, TJ = 25˚C
100µA
≤I
OUT
≤ 800mA, 3.0V ≤V
IN
≤V
OUT +4V
800mA <I
OUT
≤1.0A, 3.2V ≤V
IN
≤V
OUT +4V
1.231
1.213
1.213
1.250
1.269
1.288
1.288
V
LP8340-1.8
I
OUT = 10mA, VIN = 2.8V, TJ = 25˚C
100µA
≤I
OUT
≤800mA, 3.2V ≤V
IN
≤6V
800mA <I
OUT
≤1.0A, 3.4V ≤V
IN
≤6V
1.773
1.746
1.746
1.800
1.827
1.854
1.854
V
LP8340-2.5
I
OUT = 10mA, VIN = 3.8V, TJ = 25˚C
100µA
≤I
OUT
≤1.0A, 3.8V ≤V
IN
≤6.5V
2.463
2.425
2.500
2.538
2.575
V
LP8340-3.3
I
OUT = 10mA, VIN = 4.3V TJ = 25˚C
100µA
≤I
OUT
≤1.0A, 4.3V ≤V
IN
≤7.5V
3.250
3.201
3.300
3.350
3.399
V
LP8340-5.0
I
OUT = 10mA, VIN = 6V, TJ = 25˚C
100µA
≤I
OUT
≤1.0A, 6V ≤V
IN
≤9V
4.925
4.850
5.000
5.075
5.150
V
∆V
O
Load Regulation
LP8340-ADJ, ADJ=OUT
I
OUT = 1mA to 1.0A, VIN = 3.2V
6
25
mV
LP8340-1.8
I
OUT = 1mA to 1.0A, VIN = 3.4V
8
30
LP8340-2.5
I
OUT = 1mA to 1.0A, VIN = 3.5V
15
50
LP8340-3.3
I
OUT = 1mA to 1.0A, VIN = 4.3V
20
75
LP8340-5.0
I
OUT = 1mA to 1.0A, VIN =6V
25
100
∆V
O
Line Regulation
V
OUT + 0.5V
≤V
IN
≤10V, I
OUT = 25mA
(Note 7)
4
15
mV
V
IN −VO
Dropout Voltage
(Note 7) (Note 8)
LP8340-1.8
I
OUT = 800mA
680
1400
mV
LP8340-2.5
I
OUT = 800mA
550
1000
LP8340-2.5
I
OUT = 1.0A
670
1300
LP8340-3.3
LP8340-ADJ, V
OUT = 3.3V, IOUT = 800mA
420
800
LP8340-3.3
LP8340-ADJ, I
OUT = 1.0A
540
1000
LP8340-5.0
I
OUT = 800mA
330
650
LP8340-5.0
I
OUT = 1.0A
420
800
I
Q
Quiescent Current
V
IN
≤10V
19
50
µA
Minimum Load Current
V
IN −VOUT
≤4V
100
µA
I
LIMIT
Foldback Current Limit
V
IN −VOUT >5V
450
mA
V
IN −VOUT <4V
1600
Ripple Rejection Ratio
V
IN (dc) = VOUT +2V
V
IN (ac) = 1 VP-P @ 120Hz
48
55
dB
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