Datasheet

Vin=5V/div
EN=2V/div
SS=2V/div
Vout=2V/div
Time=5msec/div
Vin=5V/div
EN=2V/div
SS=2V/div
Vout=2V/div
Time=5msec/div
Vout=50mV/div(accoupled)
Iout=1 A /div(1 A to3 A loadstep)
Time=600 μsec/div
Vout=50mV/div(accoupled)
Iout=2 A /div(0 A to4 A loadstep)
Time=500 μsec/div
50
55
60
65
70
75
80
85
90
95
100
0 1 2 3 4
OutputCurrent- A
3.3Vin,1.8Vout
5Vin,1.8Vout
Efficiency-%
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
OutputCurrent- A
3.3Vin,1.8Vout
5Vin,1.8Vout
Efficiency-%
TPS54418
www.ti.com SLVS946C –MAY 2009–REVISED JULY 2013
From the procedures above, the compensation network includes a 7.5 kΩ resistor and a 2700 pF capacitor.
APPLICATION CURVES
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 35. Figure 36.
TRANSIENT RESPONSE, 2 A STEP TRANSIENT RESPONSE, 4 A STEP
Figure 37. Figure 38.
POWER UP VOUT, VIN POWER DOWN VOUT, VIN
Figure 39. Figure 40.
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