MCP1612-ISLASHMS datasheet(7/22 Pages) MICROCHIP

7 / 22 page

DS21921B-page 7

MCP1612

TYPICAL PERFORMANCE CURVES (Continued)

Note: Unless otherwise indicated, VIN = VCC = VSHDN = 3.3V, COUT = CIN = 10 µF, L = 3.3 µH, ILOAD = 100 mA,

TA =+25°C. Boldface specifications apply over the TA range of -40°C to +85°C.

FIGURE 2-7:

Power-Up from VIN.

FIGURE 2-8:

Power-Up from Shutdown.

FIGURE 2-9:

Load Transient Response.

FIGURE 2-10:

Load Transient Response.

FIGURE 2-11:

Line Transient Response.

FIGURE 2-12:

Line Transient Response.

VIN

2.0V/DIV

VOUT

1.0V/DIV

Start-up from VIN = 0V to 3.3V

1.0 ms/DIV

VOUT = 1.8V

SHDN

2.0V/DIV

VOUT

1.0V/DIV

Start-up from SHDN

1.0 ms/DIV

VOUT = 1.8V

VOUT

200 mV/DIV

IOUT

500 mA/DIV

IOUT = 100 mA to 800 mA

50 µs/DIV

VOUT = 1.8V

VOUT

100 mV/DIV

IOUT

500 mA/DIV

IOUT = 100 mA to 800 mA

500 µs/DIV

VIN = 5.0V

VOUT = 3.3V

VIN

2.0V/DIV

VOUT

50 mV/DIV

Line Step Response, VIN = 3.0V to 4.0V

200 µs/DIV

VOUT = 1.8V

IOUT = 800 mA

VIN

2.0V/DIV

VOUT

50 mV/DIV

Line Step Response, VIN = 4.5V to 5.5V

200 µs/DIV

VOUT = 3.3V

IOUT = 800 mA

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