
Model
Number
SDC20-48S2P0
SDC20-48S3P3
SDC20-48S05
SDC20-48S12
SDC20-48S15
Input
Range
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
Output
Voltage
2.0 VDC
3.3 VDC
5.0 VDC
12.0 VDC
15.0 VDC
Output
Current
4000mA
4000mA
4000mA
1670mA
1330mA
RIPPLE &
NOISE
(5)
50mV
50mV
75mV
75mV
75mV
Input
Current
(6)
214mA
344mA
496mA
497mA
503mA
Eff
(7)
(%)
82
84
88
88
87
Capacitor
(8)
Load max
17000uF
10300uF
6800uF
1200uF
750uF
Note
1.
An external filter capacitor is required for normal operation. The capacitor should be capable of handing 1A ripple current for 48V models. Power
mate suggest: Nippon chemi-con KMF series, 220 F/100V, ESR 90m .
Simulated source impedance of 12uH. 12uH inductor on series with +Vin.
The ON/OFF control pin voltage is referenced to negative input.
BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40oC. (Ground fixed and controlled environment)
Test condition: nominal input and full load.
Maximum value at nominal input voltage and full load.
Typical value at nominal input voltage and full load.
Test by minimum Vin and constant resistor load.
2.
3.
4.
5.
6.
7.
8.
DIP PIN CONNECTION
PIN
1
2
3
4
5
6
DEFINE
+ OUTPUT
- OUTPUT
NC
TRIM
NC
NC
DEFINE
+ INPUT
- INPUT
NC
SYNC
ON-OFF CTRL
NC
PIN
12
11
10
9
8
7
50
60
70
80
90
100
-40 -25
0
-10
25
50
75
100
0
AMBIENT TEMPERATURE (oC)
O
SDC20-48S05 Derating Curve
Nature convection
1
12
0
0
0.80(20.3)
1.20(30.5)
1.60(40.6)
1.81(46.0)
0.13(3.3)
1
0
0.063(1.6) Dip Hole
Required for guide
2 place.
1
12
7
6
TOP VIEW
1.95(49.5)
1
0
(
0.068(1.75)
1.88(47.8)
0
0.01(0.25)
0
1. All dimensions in Inches (mm)
2. Pin Pitch tolerance 0.014(0.35)
1.72(43.8)
1.52(38.7)
1.32(33.6)
0.12(3.2)
0.32(8.2)
0.52(13.3)
BOTTOM VIEW
0
(
1
DIA 0.05(1.27)
X 2
0.10(2.54)