NQ16W50SMA16 Datasheet, PDF (7/13 Pages) SynQor Worldwide Headquarters – SMT Surface Mount

Technical Specification
Input: 6.0 - 16.0V
Outputs: 0.75 - 5.0V
Current: 16A
Package: SMT
See Fig. 14
1 µH
source
impedance
See Fig. 15
i_S
DC/DC
V_IN ^Converter
See Fig. 16
V_OUT
V_SOURCE
C*
22 µF
ceramic
capacitor
* See values for recommended external input capacitance.
Inductor optional as needed.
100 µF
100mW ESR
tantalum
capacitor
Figure 13: Test set-up diagram showing measurement points for Input
Reflected Ripple Current (Figure 14), Input Terminal Ripple Voltage
(Figure 15), and Output Voltage Ripple (Figure 16).
0.9Vout
1.8Vout
3.3Vout
5.0Vout
Figure 14: Input Reflected Ripple Current, is, through a 1 µ H source
inductor at nominal input voltage and rated load current (100 mA/div).
See Figure 13.
0.9Vout
1.8Vout
3.3Vout
5.0Vout
0.9Vout
1.8Vout
3.3Vout
5.0Vout
Figure 15: Input Terminal Ripple Voltage at nominal input voltage and
rated load current (200 mV/div). Load capacitance: 22µ F ceramic cap
and 100µ F tantalum cap. Bandwidth: 20 MHz. See Figure 13.
Figure 16: Output Voltage Ripple at nominal input voltage and rated
load current (50 mV/div). Load capacitance: 22µ F ceramic cap and
100µ F tantalum cap.. Bandwidth: 20 MHz. See Figure 13.
1
0
-10
0.1
-20
-30
-40
0.01
-50
0.001
0.0001
10
5 Vout
2.5 Vout
1.5 Vout
100
1,000
10,000
100,000
Hz
-60
-70
-80
-90
100
1,000
10,000
Hz
5 Vout
2.5 Vout
1.5 Vout
100,000
1,000,000
Figure 17: Magnitude of incremental output impedance (Zout =
vout/iout) for nominal input voltage at full rated power with 100µ F tan-
talum output capacitor.
Figure 18: Magnitude of incremental forward transmission (FT =
vout/vin) for nominal input voltage at full rated power with 100µ F tan-
talum output capacitor.
Product # NQ16W50SMA16
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Doc.# 005-2NS12WE Rev. A 11/26/07
Page 7