PQ60033QPA45 Datasheet, PDF (8/14 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 3.3 V
Current: 45 A
Package: Quarter-brick
Figure 19: Input reflected ripple current, is, through a 10 µ H source
inductor at nominal input voltage and rated load current (5 mA/div). See
Figure 17.
Figure 20: Output voltage ripple at nominal input voltage and rated
load current (50 mV/div). Load capacitance: 1µ F ceramic capacitor
and 10µ F tantalum capacitor. Bandwidth: 500 MHz. See Figure 17.
4.0
3.5
3.0
2.5
2.0
1.5
1.0
35 V
0.5
48 V
75 V
0.0
0
10
20
30
40
50
60
Load Current (A)
Figure 21: Output voltage vs. load current showing typical current limit
curves and converter shutdown points.
Figure 22: Load current (20A/div) as a function of time when the con-
verter attempts to turn on into a 1 mW short circuit. Bottom trace
(2ms/div) is an expansion of the on-time portion of the top trace.
0.1
0.01
0.001
35 Vin
48 Vin
75 Vin
0.0001
10
100
1,000
10,000
100,000
Hz
Figure 23: Magnitude of incremental output impedance (Zout =
vout/iout) for minimum, nominal, and maximum input voltage at full
rated power.
-10
-20
-30
-40
-50
35 Vin
-60
48 Vin
-70
75 Vin
-80
-90
-100
-110
10
100
1,000
10,000
100,000
Hz
Figure 24: Magnitude of incremental forward transmission (FT =
vout/vin) for minimum, nominal, and maximum input voltage at full
rated power.
Product # PQ60033QPA45
Phone [phone]
www.synqor.com
Doc.# 005-2QP633F Rev. C
9/21/07
Page 8