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Электронный компонент: К1278ЕР1АТ

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-
.
,
12781

LOW DROP
I. .
_________
2%.
-
.
-
.

-92
1 2 3
SOT-89
3 2 1
K -220 (-28-2)
_________________________
1 ADJ
2 OUT
3 INP
K12781
LOW DROP
05 .
2
___________________________
,
12781 UR133A-A
-92 0.5
12781 UR133A-A
ST-89 0.5
12781 IRU1117C
-220(-28-2) 0.8
12781 APL1117FC
-220(-28-2) 1
12781 CS5203-1
-220(-28-2) 3
12781 CS5205-1
-220(-28-2) 5
________________________
Vout
Q1
Q2
-
Vin
+
GND
. 1. .
__________________________
12781 -
,
,
-
. ,

-,

.
-
,
-
. -
PNP-NPN .
-

1%. -
, -
, ,
.
12781
, -

. : -
, -
K12781
LOW DROP
05 .
3
,
,
,
150.
-

10 (min); -
,
.
-
-- ,
10 %
,
12781 , -
().
12781

1.25
(. . 2). R1,
, -
-
. 12781 -
10 . R2
.
-

R1,
.
12781 - 3-
, -
-
. , -
-
, -
.
, -
.
-
, (R1)
.
.3. R1
, -

:
R4(R2+R1)/R1,
R4 - .

II. .
_____________________
Rt
JC
-
SOT-89
TO-220
100
/
5
/
Rt
JA
-
TO-92
SOT-89
TO-220
160
/
180
/
60
/
T
-10......+70
T
J
+150
K12781
LOW DROP
05 .
4
_________________
Ui max
,
12781,
12781
12781
12781
12781
9
7
12
12
12
Io max
Ts
150
___________________
Tj =+25



.
-
.
12781, 12781
Uref
2,75˜Ui6
10Io500
1.225 1.254 1.275
Ku
-
,
Ui+1.5˜Uo9;
Io=10
- 1.0 1.6
Ki

, %
Ui-Uo=3
10Io500
- 0.1 0.5
U min

,
Io=500 - 1.2 1.4
I
ADJ
ADJ, A
Ui - Uo = 3.0 B
Io = 10
- 50 120
Ilim
,
Ui - Uo = 3B
0.6
1.0
-
12781
Uref
2.65˜Ui7
10Io800
1.225 1.254 1.275
Ku
-
, %
Ui+1.5˜Uo7;
Io=10
- 0.05 0.2
Ki

, %
Ui-Uo=3
10Io800
- 0.2 0.6
U min

,
Io=800 - 1.15
1.3
I
ADJ
ADJ, A
Ui - Uo = 3.0 B
Io = 10
- 50 100
Ilim
,
Ui - Uo = 3.0B
0.9
2.0
-
K12781
LOW DROP
05 .
5
12781
Uref
Ui+1.5˜Uo12
10Io1000
1.255 1.254 1.275
Ku
-
, %
Ui+1.5˜Uo12
Io=10
- 0.05 0.3
Ki

, %
Ui-Uo=2
10Io1000
- 0.1 0.4
U min

,
Io=1000 - 1.2 1.3
I
ADJ
ADJ, A Ui-Uo=3.0
B
Io = 10
- 50 90
Ilim
, Ui-Uo=1.5 1.1 2.0 -
12781
Uref
Ui+1.5˜Uo12
10Io3000
1.255 1.254 1.275
Ku
-
, %
Ui+1.5˜Uo12
Io=10
- 0.05 0.3
Ki

, %
Ui-Uo=2
10Io3000
- 0.1 0.4
U min

,
Io=1000 - 1.2 1.4
I
ADJ
ADJ, A Ui-Uo=3.0
B
Io = 10
- 50 90
Ilim
, Ui-Uo=1.5 3.2 4.5 -
1278
Uref
Ui+1.5˜Uo12
10Io5000
1.225 1.254 1.275
Ku
-
, %
Uo+1.5˜Ui12
Io=10
-
0.05 0.3
Ki

, %
Ui-Uo=2
10Io5000
-
0.2 0.5
U min

,
Io=5.0 -
1.35
1.5
I
ADJ
ADJ, A Ui-Uo=3.0
,
Io=10
- 50 120
Ilim
, Ui-Uo=1.5
5.2 6.5 -