Datasheet

70
75
80
85
90
95
100
0 1 2 3 4 5 6
Load Current (A)
Efficiency (%)
V
IN
= 10 V
V
IN
= 12 V
V
IN
= 24 V
V
IN
= 36 V
V
IN
= 48 V
V
IN
= 60 V
0.1 1 10 100 1000
−60
−40
−20
0
20
40
60
80
100
−135
−90
−45
0
45
90
135
180
225
Frequency (kHz)
Gain (dB)
Phase (°)
Gain
Phase
TPS40170
www.ti.com SLUS970A –MARCH 2011–REVISED NOVEMBER 2013
Typical Performance Characteristics
Figure 35 shows a 10 V to 60 V to 5.0 V @ 6 A efficiency graph for this design. Figure 36 shows a 24-V to 5.0-V
@ 6 A loop response where V
IN
= 24V and I
OUT
= 6A, yielding 58 kHz bandwidth, 51° phase margin. Figure 37
shows the output ripple 20 mV/div, 2 µs/div, 20 MHz bandwidth.
Figure 35. Efficiency vs. Load Current Figure 36. Loop Response
Figure 37. Output Ripple Waveform
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