鈥?/div>
Soft Start
Application Notes
Mechanical Outline
Product Selector Guide
Revised 6/30/98
The Power Trends鈥?PT5040 Series
is a 3-terminal Integrated Switching
Regulator (ISR) designed for use with
+5 volt systems that require an addi-
tional regulated +8 to +20 volts with up
to 1A of output current. These ISRs
are packaged in the 3 pin SIP configu-
ration.
Pin-Out Information
Pin
1
Ordering Information
PT5041o
= +12 Volts
PT5042o
= +15 Volts
PT5044o
= +8 Volts
PT5045o
= +9 Volts
PT5046o
= +10 Volts
PT5047o
= +18 Volts
PT5048o
= +12.6 Volts
PT5049o
= +20 Volts
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
Function
V
in
GND
V
out
Standard Application
V
IN
(+)
1
3
2
3
PT5040
V
OUT
(+)
N
A
C
C1
2
COM
C2
C3
COM
Pkg Style 100
C
1
= Optional ceramic (1-5碌F)
C
2
= Optional ceramic (1-5碌F)
C
3
= Required Electrolytic (100碌F)
NOTE: Boost Topology ISRs are not Short-Circuit Protected.
Specifications
Characteristics
(T
a
=25擄C unless noted)
Output Current
PT5040 SERIES
Symbols
I
o
Conditions
Over V
in
range
V
o
=20V
V
o
=18V
V
o
=12V
V
o
=15V
V
o
=8V
V
o
=9V
Min
0.1*
0.1*
0.1*
0.1*
0.1*
0.1*
鈥?/div>
鈥?/div>
鈥?/div>
PT5047/5049
4.75
4.75
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
V
o
<15V
V
o
>15V
500
650
-20
-20
-20
鈥?/div>
-40
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC Board
鈥?/div>
鈥?/div>
鈥?/div>
*** See SOA Curves.
Typ
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1.5 I
o
max
2.5
1
鈥?/div>
鈥?/div>
鹵1.5
鹵0.5
鹵0.5
鹵2
500
3.0
85
650
800
鈥?/div>
鈥?/div>
鈥?/div>
40
鈥?/div>
500
5
4.5
Max
0.5
0.6
1.0
0.75
1.5
1.25
鈥?/div>
鈥?/div>
鈥?/div>
(V
o-
1V)
14
鹵3.0
鹵1.0
鹵1.0
鹵5
鈥?/div>
5.0
鈥?/div>
800
950
+85
70***
55***
鈥?/div>
+125
鈥?/div>
鈥?/div>
鈥?/div>
Units
A
A
A
A
A
A
A
A
mSec
V
V
%V
o
%V
o
%V
o
%V
o
碌Sec
%V
o
%
kHz
kHz
擄C
擄C
擄C
擄C/W
擄C
G鈥檚
G鈥檚
grams
Current Limit**
Inrush Current
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
Efficiency
Switching Frequency
Absolute Maximum
Operating Temperature Range
Recommended Operating
Temperature Range
Thermal Resistance
Storage Temperature
Mechanical Shock
Mechanical Vibration
Weight
I
cl
I
ir
t
ir
V
in
鈭哣
o
Reg
line
Reg
load
V
n
t
tr
V
os
畏
茠
o
T
a
T
a
V
in
= +5V
V
in
= +5V @ max I
o
On start up
I
o
= 0.1 to I
o
max
Over V
in
Range
I
o
= I
max,
T
a
= -20擄C to shutdown
Over V
in
range
0.1
鈮?/div>
I
o
鈮?/div>
I
o
max
V
in
= +5V, I
o
=I
o
max
25% load change
V
o
over/undershoot
V
in
= +5V, I
o
=0.5A, V
o
= +12V
Over V
in
and I
o
ranges
鈥?/div>
Free Air Convection, (40-60LFM) V
o
<15V
Over V
in
and I
o
ranges
V
o
>15V
Free Air Convection
(40-60LFM)
胃
ja
T
s
* ISR will operate down to no load with reduced specifications.
** Boost topology ISRs are not short circuit protected.
44
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902
http://www.powertrends.com
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