參數(shù)資料
型號： SQM48T20025-NBA0G
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT, ONE-EIGHTH BRICK PACKAGE-8
文件頁數(shù)： 32/33頁
文件大?。?/td> 404K
代理商： SQM48T20025-NBA0G
MCD10208 Rev. 1.0, 08-Jul-10
Page 8 of 33
www.power-one.com
SQM48T/S20 DC-DC Converter Data Sheet
36-75 VDC Input; 1.2-3.3 VDC @ 20A Outputs
Electrical Specifications: SQM48T/S20033 (3.3 Volt Out)
Conditions: TA=25 C, Airflow=300 LFM (1.5 m/s), Vin=48 VDC, Vout=3.3 VDC, unless otherwise specified.
Parameter
Notes
Min
Typ
Max
Units
Input Characteristics
Maximum Input Current
20 ADC, 3.3 VDC Out @ 36 VDC In
2.1
ADC
Input Stand-by Current
Vin = 48 V, converter disabled
3
mADC
Input No Load Current (0 load on the output)
Vin = 48 V, converter enabled
45
mADC
Input Reflected-Ripple Current
25MHz bandwidth
6
mAPK-PK
Input Voltage Ripple Rejection
120Hz
TBD
dB
Output Characteristics
Output Voltage Set Point (no load)
3.267
3.300
3.333
VDC
Output Regulation
Over Line
±2
±5
mV
Over Load
±2
±5
mV
Output Voltage Range
Over line, load and temperature
2
3.250
3.350
VDC
Output Ripple and Noise - 25MHz
bandwidth
Full load + 10 μF tantalum + 1 μF
ceramic
30
50
mVPK-PK
External Load Capacitance
Plus full load (resistive)
20,000
μF
Output Current Range
0
20
ADC
Current Limit Inception
Non-latching
21
24
27.5
ADC
Peak Short-Circuit Current
Non-latching. Short=10m.
30
44
A
RMS Short-Circuit Current
Non-latching
6.7
Arms
Dynamic Response
Load Change 25% of Iout Max, di/dt = 0.1A/μs Co = 1 μF ceramic
80
mV
di/dt = 5A/μs
Co = 450 μF POS + 1 μF ceramic
140
mV
Settling Time to 1%
100
s
Efficiency
100% Load
90
%
50% Load
91
%
Additional Notes: 2. -40 C to 85 C.
Ambient Temperature [°C]
20
30
40
50
60
70
80
90
Load
C
u
rre
nt
[
A
dc]
0
5
10
15
20
25
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)
Fig. 3.3V.1:
Available load current vs. ambient air
temperature and airflow rates for SQM48T20033 converter
with D height pins mounted vertically with air flowing from
pin 3 to pin 1, MOSFET temperature
120 C, Vin = 48
Load Current [Adc]
0
5
10
15
20
25
E
ffici
enc
y
0.65
0.70
0.75
0.80
0.85
0.90
0.95
72 V
48 V
36 V
Fig. 3.3V.2: Efficiency vs. load current and input voltage for
SQM48T/S20033 converter mounted vertically with air
flowing from pin 3 to pin 1 at a rate of 300 LFM (1.5 m/s) and
Ta = 25
C.
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相關(guān)代理商/技術(shù)參數(shù)
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SQM48T20025-NBAPG 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 2.5V 20A - Bulk
SQM48T20025-NBB0 功能描述:DC/DC轉(zhuǎn)換器 RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
SQM48T20025-NBB0G 功能描述:DC/DC轉(zhuǎn)換器 RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
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