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DS20006388E-page 13

MCP16501

Note: Unless otherwise specified: VIN = VIN= PVINx = 5V; L1 = L2 = L3 = 2.2 µH; COUT1 = COUT2 = COUT3 = 22 µF, TA

= +25°C

FIGURE 2-19:

Buck Channels Output

Voltage Ripple, Active (FPWM) Mode.

FIGURE 2-20:

Buck Channels Output

Voltage Ripple, Low-Power (Auto-PFM)

Mode.

FIGURE 2-21:

MCP16501D Automatic

Wake-Up Pulse upon Fault on Active Channels,

Hibernate Mode.

VOUT1

AC Coupled

10 mV/div

VOUT2

AC Coupled

10 mV/div

VOUT3

AC Coupled

10 mV/div

10

s/div

VOUT1(3.3V)

AC Coupled

10 mV/div

VOUT2(1.2V)

AC Coupled

10 mV/div

VOUT3(1.25V)

AC Coupled

10 mV/div

40 ms/div

LPM

PWRHLD

FAULT

nSTRTO

BUCK1

BUCK2

LVOUT

BUCK3

nRSTO

40 ms/div