SW001A2B91-SR Lineage Power, SW001A2B91-SR Datasheet - Page 7

• 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

The following figures provide typical characteristics for the SW001A2B91 (12.0V, 1.2A) at 25ºC. The figures are
Data Sheet
October 5, 2009
Characteristic Curves
identical for either positive or negative Remote On/Off logic.
Figure 7. Converter Efficiency Vs Load at V
Figure 8. Derating Output Current versus Local
Ambient Temperature and Airflow.
Figure 9. Typical Output Ripple and Noise, V
nom
LINEAGE
I
O
88
86
84
82
80
78
76
74
72
70
=80% of I
0.8
0.6
0.4
0.2
0.0
1.4
1.2
1.0
0.0
0
POWER
10
0.2
AMBIENT TEMPERATURE, T
O, max.
3.0 m/s (600 ft./min.)
2.0 m/s (400 ft./min.)
20
1.0 m/s (200 ft./min.)
Natural Convection
OUTPUT CURRENT, I
30
0.4
TIME, t (1μs/div)
40
18-36Vdc & 36-75Vdc Input; 3.3-15Vdc Output; 1-3.5A Output Current
50
0.6
(continued)
60
70
0.8
o
(A)
80
A
O
90
C
o
1.0
V
V
V
= 12 V.
IN
I
I
I
= 36V
= 75V
= 54V
100
=V
IN,
110
1.2
Figure 10. Typical Start-Up Using Remote On/Off,
negative logic version shown.
Figure 11. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
Figure 12. Typical Start-Up Output Voltage Rise
Characteristic.
SW/SC001/003 Series DC-DC Power Module:
TIME, t (1.0ms/div)
TIME, t (100μs/div)
TIME, t (5ms/div)
7