NQ04009VMA15NRS Datasheet, PDF (12/20 Pages) SynQor Worldwide Headquarters – 16Amp, wide ouput range, Non-Isolated DC/DC Converter

Performance Curves
Non-Isolated
SIP Converter
3.0 - 5.5Vin 16A
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
0
0.9V
1.0V
1.2V
1.5V
1.8V
2.5V
3.3V
500 1000 1500 2000 2500 3000 3500 4000
Load Capacitance (uF)
Figure 25: Maximum Startup Load Current versus Load Capacitance.
Derate the load during startup according to this figure to avoid the pos-
sibility of over-current shutdown.
Figs. 26-27
<1 µH
source
impedance
Figs. 24-25
Figs. 28-29
i_S
i_C
DC/DC
Converter
V_OUT
V_SOURCE
C*
* See values for recommended external input
capacitance. Inductor optional as needed. Reduce
to <0.3µH for Cout > 1000µF, unless Cin > Cout.
10 µF 15 µF,
ceramic _{100mΩ ESR}
capacitor _tantalum
capacitor
Figure 26: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figs 27-28), Input Reflected Ripple Current
(Figs 29-30) and Output Voltage Ripple (Figs 31-32).
0.9Vout
1.0Vout
1.2Vout
1.5Vout
1.8Vout
2.5Vout
0.9Vout
1.0Vout
1.2Vout
1.5Vout
1.8Vout
2.5Vout
3.3Vout
Figure 27: Input Terminal Ripple Current, ic, at 15A load and 3.3V
input voltage with 1µH source impedance and 200µF tantalum capaci-
tor (5A/div). See Figure 26.
0.9Vout
1.0Vout
1.2Vout
1.5Vout
1.8Vout
2.5Vout
Figure 28: Input Terminal Ripple Current, ic, at 15A load and 5.0V
input voltage with 1µH source impedance and 200µF tantalum capaci-
tor (5A/div). See Figure 26.
0.9Vout
1.0Vout
1.2Vout
1.5Vout
1.8Vout
2.5Vout
3.3Vout
Figure 29: Input Reflected Ripple Current, is, through a 1µH source
inductor at 3.3V input voltage and 15A load current (100 mA/div). See
Figure 26.
Product # NQ04T33VMA16
Phone [phone]
Figure 30: Input Reflected Ripple Current, is, through a 1µH source
inductor at 5.0V input voltage and 15A load current (100 mA/div). See
Figure 26.
Doc.# 005-2NV4T3E Rev. B
7/6/04
Page 12