PQ60260HTB10 Datasheet, PDF (6/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 26 V
Current: 9.6 A (250W)
Package: Half-brick
Figure 7: Turn-on transient at full load (resistive load) (10 ms/div).
Input voltage pre-applied. Top Trace: Vout (10V/div). Bottom Trace:
ON/OFF input (5V/div).
Figure 8: Turn-on transient at zero load (10 ms/div). Top Trace: Vout
(10V/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, 450 mW ESR tantalum cap
and 1µF ceramic cap. Top trace: Vout (500mV/div), Bottom trace: Iout (5A/div).
Figure 10: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max): dI/dt = 5A/µs). Load cap: 480µF, 15 mW ESR tantalum cap
and 1µF ceramic cap. Top trace: Vout (500mV/div), Bottom trace: Iout (5A/div).
See Fig. 13
10 µH
source
impedance
See Fig. 12
See Fig. 14
i_S
V_SOURCE
i_C
47 µF,
<1W ESR
electrolytic
capacitor
DC/DC
Converter
V_OUT
1 µF 15 µF,
ceramic _{450mW ESR}
capacitor _tantalum
capacitor
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 cur-
rent and nominal input voltage with 10µH source impedance and 47µF
electrolytic capacitor (500 mA/div). See Figure 11.
Product # PQ60260HTB10
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www.synqor.com
Doc.# 005-2HTB26F Rev. H
10/10/08
Page 6