SW001A2B91-SR Lineage Power, SW001A2B91-SR Datasheet - Page 6

• Manufacturer Part Number: SW001A2B91-SR
• Description: DC/DC Converters & Regulators SMT 1.2A, IN 48V OUT 12V, NEGATIVE
• Manufacturer: Lineage Power
• Type: Step Downr

Specifications of SW001A2B91-SR

• Output Current: 1.2A
• Input Voltage: 48V
• Output Voltage: 12V
• Screening Level: Industrial
• Product Length (mm): 24.4mm
• Product Depth (mm): 27.9mm
• Mounting Style: Surface Mount
• Pin Count: 6
• Number Of Outputs: 1
• Package / Case: SMT
• Lead Free Status / RoHS Status: Not Compliant

Data Sheet
October 5, 2009
Characteristic Curves
The following figures provide typical characteristics for the SW001A0C91 (15.0V, 1A) at 25ºC. The figures are
identical for either positive or negative Remote On/Off logic.
Figure 1. Converter Efficiency versus Output
Current.
Figure 2. Derating Output Current versus Local
Ambient Temperature and Airflow.
Figure 3. Typical Output Ripple and Noise, V
nom
LINEAGE
I
O
90
88
86
84
82
80
=80% of I
78
76
74
72
70
0.8
0.6
0.4
0.2
0.0
1.2
1.0
0
0
POWER
10
AMBIENT TEMPERATURE, T
O, max.
3.0 m/ s (600 f t ./ min.)
2.0 m/ s (400 f t ./ min.)
0.2
1.0 m/ s (200 f t ./ min.)
20
Nat ural Convect ion
OUTPUT CURRENT, I
30
TIME, t (1μs/div)
40
0.4
18-36Vdc & 36-75Vdc Input; 3.3-15Vdc Output; 1-3.5A Output Current
50
60
0.6
70
o
(A)
80
A
V
V
V
0.8
I
I
I
O
= 36V
= 75V
= 54V
90
C
IN
100
=V
IN,
110
1
Figure 4. Typical Start-Up Using Remote On/Off,
negative logic version shown.
Figure 5. Transient Response to Dynamic Load Change
from 50% to 75% to 50% of full load.
Figure 6. Typical Start-Up Output Voltage Rise
Characteristic.
SW/SC001/003 Series DC-DC Power Module:
TIME, t (500μs/div)
TIME, t (5ms/div)
TIME, t (1ms/div)
6