SQ48 Power-One, SQ48 Datasheet - Page 48

• Manufacturer Part Number: SQ48
• Description: Sq48 Dc-dc Series
• Manufacturer: Power-One

Electrical Specifications: SQ48T/S15015 (1.5 Volt Out)
Conditions: T
SEP 14, 2005 revised to NOV 06, 2006
1
Input Characteristics
Maximum Input Current
Input Stand-by Current
Input No Load Current (0 load on the output)
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
Output Characteristics
Output Voltage Set Point (no load)
Output Regulation
Over Line
Over Load
Output Voltage Range
Output Ripple and Noise - 25 MHz
bandwidth
External Load Capacitance
Output Current Range
Current Limit Inception
Peak Short-Circuit Current
RMS Short-Circuit Current
Dynamic Response
Load Change 25% of Iout Max, di/dt = 0.1 A/μs Co = 1 μF ceramic
Settling Time to 1%
Efficiency
100% Load
-40 ºC to 85 ºC.
Fig. 1.5V.1:
temperature and airflow rates for SQ48T15015 converter
with D height pins mounted vertically with Vin = 48 V, air
flowing from pin 3 to pin 1, and maximum FET
temperature ≤ 120 °C
50% Load
20
15
10
5
0
20
A
= 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 48 VDC, Vout = 1.5 VDC, unless otherwise specified.
30
500 LFM (2.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
Available load current vs. ambient air
Parameter
40
Ambient Temperature [°C]
50
di/dt = 5 A/μs
60
70
15 ADC, 1.5 VDC Out @ 36 VDC In
Vin = 48 V, converter disabled
Vin = 48 V, converter enabled
25 MHz bandwidth
120 Hz
Over line, load and temperature
Full load + 10 μF tantalum + 1 μF
ceramic
Plus full load (resistive)
Non-latching
Non-latching, Short =10 mΩ.
Non-latching
Co = 450 μF POS + 1 μF ceramic
80
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90
Notes
36-75 VDC Input; 1.0-12 VDC Output
Fig. 1.5V.2: Available load current vs. ambient air
temperature and airflow rates for SQ48T15015 converter
with D height pins mounted horizontally with Vin = 48 V,
air flowing from pin 3 to pin 1, and maximum FET
temperature ≤ 120 °C.
20
15
10
5
0
SQ48 DC-DC Series Data Sheet
20
1
30
500 LFM (2.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
40
1.485
1.477
15.75
Min
Ambient Temperature [°C]
0
50
1.500
Typ
TBD
84.5
85.0
120
100
2.6
25
±2
±2
30
18
30
80
6
60
www.power-one.com
15,000
1.515
1.523
Max
0.75
5.3
±4
±4
50
15
20
40
70
mA
mV
mADC
mADC
Units
80
Arms
ADC
VDC
VDC
ADC
ADC
mV
mV
mV
mV
dB
μF
µs
%
%
A
PK-PK
PK-PK
90