TA = 25°C, VIN = 5 V, VOUT = 1.8 V, 1.8 MHz, PWM mode, BOM = Table 9-1 unless otherwise noted.
Figure 9-2 Efficiency VIN = 5.0 V and TA = 25°C Figure 9-4 Efficiency VIN = 3.3 V and TA = 25°C Figure 9-6 Efficiency VIN = 2.7 V and TA = 25°C Figure 9-8 Load Regulation VIN = 5.0 V (PSM) Figure 9-10 Load Regulation VIN = 3.3 V (PSM) Figure 9-12 Load Regulation VIN = 2.7 V (PSM) RθJA = 32.2 °C/W | fSW = 1.8 MHz | TJ,max = 125 °C |
Figure 9-14 Safe Operating Area VIN = 5.0 VVOUT = 1.8 V | PSM | TA = 25°C |
VIN = 5.0 V | IOUT = 0.6 A to 5.4 A to 0.6 A |
Figure 9-16 Load Transient ResponseVOUT = 1.8 V | PSM | TA = 25 °C |
IOUT = 0 A | VIN = 5.0 V | BW = 20 MHz |
Figure 9-18 Output and Input Voltage RippleVOUT = 1.8 V | PSM | TA = 25°C |
IOUT = 0 A | VIN = 5 V | CSS = 4.7 nF |
Figure 9-20 Start-Up TimingFigure 9-3 Efficiency VIN = 5.0 V and TA = 85°C Figure 9-5 Efficiency VIN = 3.3 V and TA = 85°C Figure 9-7 Efficiency VIN = 2.7 V and TA = 85°C Figure 9-9 Load Regulation VIN = 5.0 V (FPWM) Figure 9-11 Load Regulation VIN = 3.3 V (FPWM) Figure 9-13 Load Regulation VIN = 2.7 V (FPWM) RθJA = 32.2 °C/W | fSW = 1.8 MHz | TJ,max = 125 °C |
Figure 9-15 Safe Operating Area VIN = 3.3 VVOUT = 1.8 V | FPWM | TA = 25°C |
VIN = 5.0 V | IOUT = 0.6 A to 5.4 A to 0.6 A |
Figure 9-17 Load Transient ResponseVOUT = 1.8 V | PWM | TA = 25°C |
IOUT = 4 A | VIN = 5.0 V | BW = 20 MHz |
Figure 9-19 Output and Input Voltage RippleVOUT = 1.8 V | FPWM | TA = 25°C |
IOUT = 4 A | VIN = 5 V | CSS = 4.7 nF |
Figure 9-21 Start-Up Timing