鈥?/div>
NKE0303S
NKE0305S
NKE0503S
NKE0505SE
NKE0505S
NKE0509S
NKE0512S
NKE0515S
(V)
3.3
3.3
5
5
5
5
5
5
12
12
12
12
(V)
3.3
5
3.3
5
5
9
12
15
5
9
12
15
(mA)
303
200
303
200
200
111
83
66
200
111
83
66
(mA)
400
400
270
250
289
266
260
256
117
107
105
103
(%)
75
76
75
78
69
75
77
78
71
78
79
81
(pF)
30
35
40
34
28
29
30
32
35
50
57
60
kHrs
1234
632
619
419
2414
1173
633
360
620
488
360
252
FEATURES
s
New Sub-Miniature SIP & DIP Styles
s
3kVDC Isolation
s
Efficiency to 81%
s
Wide Temperature performance at
full 1 Watt load, 鈥?0擄C to 85擄C
s
Increased Power Density to
1.95W/cm
3
s
UL 94V-0 Package Material
s
Footprint 0.69cm
2
s
Single Isolated Output
s
Industry Standard Pinout
s
3.3V, 5V & 12V Input
s
3.3V, 5V, 9V, 12V and 15V Output
s
No Heatsink Required
s
Internal SMD Construction
s
Fully Encapsulated with Toroidal
Magnetics
s
No External Components Required
s
MTTF up to 2.4 Million hours
s
Custom Solutions Available
s
No Electrolytic or Tantalum
Capacitors
DESCRIPTION
The NKE sub-miniature series of DC-DC
Converters is particularly suited to isolating
and/or converting DC power rails. A smaller
package size, improved efficiency, lower
output ripple and 3kVDC isolation capability
through state of the art packaging and
improved technology. The galvanic isolation
allows the device to be configured to provide
an isolated negative rail in systems where
only positive rails exist. The wide temperature
range guarantees startup from 鈥?0擄C and full
1 watt output at 85擄C.
NKE1205S
NKE1209S
NKE1212S
NKE1215S
鈥?For DIP package style replace suffix S with D, eg NKE0303D.
i When operated
without
additional external load capacitance, the output voltage of the devices is guaranteed
to be within 95% of its steady state value within 100ms after the input voltage has reached 95% of its steady
state value,
irrespective of the rise time of the input voltage.
ii When operated
with
additional external load capacitance the rise time of the input voltage will determine the
maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the
greater the maximum value of the additional external capacitance for reliable start up.
INPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Range
Reflected Ripple Current
Continuous operation, 3.3V input types 2.97
Continuous operation, 5V input types
4.5
Continuous operation, 12V input types 10.8
3.3
5.0
12.0
40
3.63
5.5
13.2
V
60 mA p-p
OUTPUT CHARACTERISTICS
Parameter
Conditions
2
TYP
MAX
Units
Rated Power
Voltage Set Point
Accuracy
Line regulation
T
A
= 鈥?0擄C to 85擄C
See tolerance envelope
1.0
10
12
7.5
6.5
6.0
40
77
43
35
32
1
W
High V
IN
to low V
IN
10% load to rated load, 3.3V output types
10% load to rated load, 5V output types
3
Load Regulation
10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
BW=DC to 20MHz, 3.3V output types
BW=DC to 20MHz, 5V output types
Ripple and Noise BW=DC to 20MHz, 9V output types
BW=DC to 20MHz, 12V output types
BW=DC to 20MHz, 15V output types
1.2
15
15
10
9.5
8.5
80
100
90
65
55
%/%
%
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short circuit duration
4
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
in
NKE03 types
Input voltage V
in
NKE05 types
Input voltage V
in
NKE12 types
1
2
3
4
Calculated using MIL-HDBK-217F with nominal input voltage at full load.
See derating curve.
12V input types have typically 3% less load regulation change.
Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at TA=25擄C, nominal input voltage and rated output current unless otherwise specified.
1 second
530mW
300擄C
5.5V
7V
15V
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