Eorex EP1017-KU50R Three-terminal adjustable output positive voltage regulator Datasheet

eorex
Preliminary
EP1017
THREE-TERMINAL ADJUSTABLE
OUTPUT POSITIVE VOLTAGE REGULATORS
Description
The EP1017 are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 1.5A over
an output voltage range of 1.2 to 37V. These voltage regulators are exceptionally easy to use and require
only two external resistors to set the output voltage. Further, they employ internal current limiting. Thermal
shutdown and safe area compensation, making them essentially blow-out proof.
Pin Assignment
Ordering Information
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EP1017
Preliminary
Maximun Ratings
Rating
Input-Output
Voltage Differential
Symbol
Value
Unit
VI-VO
40
Vdc
Power dissipation
PD
Operating
T
Internally
Limited
℃
-40 to +125
Electrical Characteristics (VI-VO=5.0V;IO=0.5A;TJ=25℃)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Regline
Line Regulation1
3.0V≦(V1-V0) ≦40V
0.04
%/V
Regload
Line Regulation1
10mA≦1out ≦1.5A,
V0≦5.0V,C≧5.0V
25
0.5
mV
%V
TR
Thermal Regulation
20ms Pulse
0.07
%W
IAdi
Adjustment Pin Current
100
µA
2
Vref
Reference Voltage
PD≦20W
3.0V≦V1-V0≦40V
10mA≦Io≦1.5A
1.3
V
ILIMIT
Minimum Load Current to
Maintain Regulation
V1-V0=40V
10
mA
IMax
Maximum Output Current
PD≦20W, V1-V0≦15V
V1-V0=40V
θth
Thermal Resistance
junction to ambient
1.5
0.15
2.2
0.4
A
5.0
°C/W
NOTES:
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.
2.Selected devices with tightened tolerance reference voltage available.
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Preliminary
EP1017
Typical Performance Characteristics
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Preliminary
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EP1017
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Preliminary
EP1017
Schematic Diagram
EP1017 contains 29 active transistors
Typical Application
5.0V Electronic Shutdown Regulator
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Preliminary
EP1017
Standard Application
*Cin is required if regulator is located an appreciate distance from power supply filter.
*Cout is not needed for stability, however, it does improve transient response.
Vout=1.25(1+R2/R1)+IAdjR2
Since IAdj is controlled to less than 100 µA, the error associated with this term is negligible in most
applications.
*Pulse testing required. 1% Duty Cycle is suggested.
To calculate R2: Vout=ISETR2+1.250V ; Assume ISET=5.25mA
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EP1017
Preliminary
Package Description
DIM
MILLIMETERS
MIN
MAX
A
14.97
16.24
B
9.66
10.28
C
4.07
4.82
D
0.64
0.88
F
3.61
3.73
G
2.42
2.66
H
2.80
3.93
J
0.48
0.67
K
12.70
14.27
L
1.20
1.63
N
4.83
5.33
Q
2.54
3.04
R
2.04
2.78
S
1.05
1.39
T
V
6.36
1.00
6.86
-
Z
-
2.04
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EP1017
Preliminary
Package Description (Continued)
DIM
MILLIMETERS
MIN
MAX
A
8.64
9.65
B
9.65
10.29
C
4.06
4.83
D
0.51
0.99
E
1.14
1.40
F
1.14
1.40
J
0.46
0.74
K
14.61
15.88
L
2.54
M
00
80
N
2.03
2.79
S
1.27
1.78
U
2.29
2.79
V
1.02
1.40
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