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Description
Preliminary
EP1017
THREE-TERMINAL ADJUSTABLE
OUTPUT POSITIVE VOLTAGE REGULATORS
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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Maximun Ratings
Rating
Symbol
Preliminary
EP1017
Value
Unit
Input-Output
Voltage Differential
Power dissipation
Operating
V
I
-V
O
40
Internally
Limited
-40 to +125
Vdc
P
D
T
℃
Electrical Characteristics
(VI-VO=5.0V;IO=0.5A;TJ=25
℃
)
Symbol
Reg
line
Parameter
Line Regulation
1
Line Regulation
1
Thermal Regulation
Adjustment Pin Current
P
D
≦20W
3.0V≦V
1
-V
0
≦40V
10mA≦Io≦1.5A
V
1
-V
0
=40V
PD≦20W,
V
1
-V
0
≦15V
V
1
-V
0
=40V
junction to ambient
1.5
0.15
2.2
0.4
5.0
2
Conditions
3.0V≦(V1-V0)
≦40V
10mA≦1
out
≦1.5A,
V
0
≦5.0V,
C
≧5.0V
20ms Pulse
Min.
Typ.
Max.
0.04
25
0.5
0.07
100
Units
%/V
mV
%V
%W
Reg
load
T
R
I
Adi
µ
A
V
ref
Reference Voltage
1.3
V
I
LIMIT
I
Max
Minimum Load Current to
Maintain Regulation
Maximum Output Current
Thermal Resistance
10
mA
A
°C/W
θ
th
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
EP1017
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Schematic Diagram
Preliminary
EP1017
EP1017 contains 29 active transistors
Typical Application
5.0V Electronic Shutdown Regulator
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