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PQ50050HPB50 Datasheet(PDF) 7 Page - SynQor Worldwide Headquarters

Part No. PQ50050HPB50
Description  Output voltage trim permits custom voltages and voltage margining
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Manufacturer  SYNQOR [SynQor Worldwide Headquarters]
Direct Link  http://www.synqor.com
Logo SYNQOR - SynQor Worldwide Headquarters

PQ50050HPB50 Datasheet(HTML) 7 Page - SynQor Worldwide Headquarters

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Product # PQ50050HPB50
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005487 Rev. A
03/18/10
Page 7
Input:
Output:
Current:
Part No.:
10µH
source
impedance
Input
Terminal
Input
Input
Ripple
Current
Ripple
Ripple
Input
Reflected
Ripple
Current
Ripple
Ripple
Output
Voltage
Output
Output
Ripple
Voltage
Voltage
1µF
ceramic
capacitor
15µF,
450m Ω ESR
tantalum
capacitor
47µF,
<1Ω ESR
electrolytic
capacitor
VSOURCE
VOUT
i
S
i
C
DC-DC
Figure 7: Turn-on transient at full load (resistive load) (10 ms/div). Input voltage
pre-applied. Top Trace: Vout (2V/div). Bottom Trace: ON/OFF input (5V/div)
Figure 8: Turn-on transient at zero load (10 ms/div). Top Trace: Vout (2V/div).
Bottom Trace: ON/OFF input (5V/div)
Figure 9: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF, 450mΩ ESR tantalum cap
and 1µF ceramic cap. Top trace: Vout (200mv/div), Bottom Trace:Iout (20A/div).
Figure 10: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 15mΩ ESR tantalum cap
and 1µF ceramic cap. Top trace: Vout (200mv/div), Bottom Trace:Iout (20A/div).
Figure 11: Test set-up diagram showing measurement points for Input Terminal
Ripple Current (Figure 12), Input Reflected Ripple Current (Figure 13) and
Output Voltage Ripple (Figure 14).
Figure 12: Input Terminal Ripple Current, ic, at full rated output current and
nominal input voltage with 10µH source impedance and 47µF electrolytic
capacitor (200mA/div). (See Figure 11).


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