鈥?/div>
Single Device: 5A Output
Input Voltage Range: 18V to 36V
Adjustable Output Voltage
80% Efficiency
Remote Sense Capability
Standby Function
The PT6680 series is a new addi-
tion to Power Trends鈥?line of 24V bus
Integrated Switching Regulators (ISRs).
Designed for general purpose indus-
trial applications requiring as much as
36V input and 5A of output current,
the PT6680 is packaged in a 14-Pin
SIP (Single In-line Package) and is
available in a surface-mount configu-
ration.
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
Pin-Out Information
Standard Application
REMOTE SENSE
1
Ordering Information
PT6681!
PT6682!
PT6683!
PT6684!
PT6685!
PT6686!
= +3.3 Volts
= +2.5 Volts
= +5.0 Volts
= +9.0 Volts
= +15.0 Volts
= +12.0 Volts
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Heat
Heat Spreader
Spreader with Side T
abs
V
IN
4,5,6
3
PT6680
7,8,9,10
11,12,13
V
OUT
C
1
STBY
COM
+
Q
1
C
2
+
LOAD
COM
C
1
= Required 560碌F electrolytic
(1)
C
2
= Required 330碌F electrolytic
Q
1
= NFET-or Open Collector Gate
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Remote Sense
Do Not Connect
STBY*- Standby
V
in
V
in
V
in
GND
GND
GND
GND
V
out
V
out
V
out
V
out
Adjust
P
Horizontal Through-Hole
D
Horizontal Surface Mount
E
R
G
B
Pkg Style 400
PT6680
Note: Back surface
of product is
conducting metal
Specifications
Characteristics
(T
a
= 25擄C unless noted)
Output Current
Input Voltage Range
Output Voltage T
olerance
Output Voltage Adjust Range
PT6680 SERIES
Symbols
I
o
V
in
鈭哣
o
V
oadj
Conditions
T
a
= 60擄C, 200 LFM, pkg P
T
a
= 25擄C, natural convection
0.1A
鈮?/div>
I
o
鈮?/div>
I
omax
Over V
in
range
T
a
= -40擄C to +65擄C
Pin 14 to V
o
or ground
V
o
V
o
V
o
V
o
V
o
V
o
= +3.3V
= +2.5V
= +5.0V
= +9.0V
= +12V
= +15V
Min
0.1
0.1
(2)
(2)
Typ
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鹵0.5
鹵0.5
50
1.0
100
100
78
73
82
87
88
90
550
鈥?/div>
鈥?/div>
500
7.5
14
Max
5.0
5.0
+36V
V
o
+0.1
4.7
4.3
6.5
10.2
13.6
17.0
鹵1.0
鹵1.0
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
600
+85
(3)
Units
A
V
V
+18V
V
o
-0.1
2.2
1.8
3.0
6.0
9.0
10.0
鈥?/div>
鈥?/div>
V
o
< +6V
V
o
> +6V
鈥?/div>
鈥?/div>
鈥?/div>
V
o
V
o
V
o
V
o
V
o
V
o
= +3.3V
= +2.5V
= +5.0V
= +9.0V
= +12.0V
= +15.0V
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
500
-40
-40
鈥?/div>
鈥?/div>
鈥?/div>
V
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
with C
2
= 330碌F
Efficiency
Reg
line
Reg
load
V
n
t
tr
V
os
+18V鈮
in
鈮?36V
I
o
= I
omax
,
V
in
= +28V, 0.1鈮?I
o
鈮?/div>
I
omax
V
in
= +28V, I
o
= I
omax
I
o
step between 2.5A and 5.0A
V
o
over/undershoot
V
in
= +28V, I
o
= I
o max
%V
o
%V
o
mVpp
%V
o
碌Sec
mV
畏
%
Switching Frequency
Maximum Operating
Temperature Range
Storage T
emperature
Mechanical Shock
Mechanical Vibration
Weight
茠
o
T
a
T
s
鈥?/div>
鈥?/div>
鈥?/div>
+18V
鈮?/div>
V
in
鈮?/div>
+36V
Over I
o
range
Over V
in
range
鈥?/div>
Per Mil-STD-883D, Method 2002.3
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
鈥?/div>
kHz
擄C
擄C
G鈥檚
G鈥檚
grams
+125
鈥?/div>
鈥?/div>
鈥?/div>
Notes
(1) The 560碌F electrolytic input capacitor must be rated for 1.5Arms ripple current. Both an input and output capacitor is required for proper operation.
(2) The ISR will operate down to no load with reduced specifications.
(3) Consult the SOA curves or contact the factory to determine the appropriate derating.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
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