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HPA168LoadRegulation
1.791
1.793
1.795
1.797
1.799
1.801
1.803
1.805
1.807
0 0.25 0.5 0.75 1 1.25 1.5 1.75
I -OutputCurrent- A
O
PFM/PWM
V -OutputVoltage-V
O
V =3.3V
I
ForcedPWM
Setup
Figure 2. HPA168 Load Regulation
Figure 3 shows the 1.8V output voltage when the load current is pulsed between 1500mA and 150mA. Vin
= 3.3Vdc, SYNC = Vin. (Blue = Output Voltage = 50mV/DIV, Green = Output Current = 500mA/DIV,
5 µ s/DIV)
Figure 3. Output Voltage
Figure 4 shows the 1.8V output voltage when the load current is pulsed between 150mA and 1500mA. Vin
= 3.3Vdc, SYNC = Vin. (Blue = Output Voltage = 50mV/DIV, Green = Output Current = 500mA/DIV,
5 µ s/DIV)
4 TPS62510EVM-168 SLVU161 – May 2006
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