MCP16331 datasheet(9/48 Pages) MICROCHIP

Part #	MCP16331

Description	High-Voltage Input Integrated Switch Step-Down Regulator

PDF	48 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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9 / 48 page

 2014-2021 Microchip Technology Inc.

DS20005308D-page 9

MCP16331

Note: Unless otherwise indicated, VIN = EN = 12V, COUT = CIN = 2 x10 µF, L = 15 µH, VOUT = 3.3V, ILOAD = 100 mA,

TA = +25°C, 6-Lead SOT-23 package.

FIGURE 2-24:

Heavy Load Switching

Waveforms.

FIGURE 2-25:

Light Load Switching

Waveforms.

FIGURE 2-26:

Start-up from VIN.

FIGURE 2-27:

Start-up from EN.

FIGURE 2-28:

Load Transient Response.

FIGURE 2-29:

Line Transient Response.

VIN = 12V

VOUT =3.3V

IOUT = 300 mA

2µs/div

VOUT

20 mV/div

AC coupled

200 mA/div

10V/div

VIN = 48V

VOUT =3.3V

IOUT =5 mA

VOUT

20 mV/div

AC coupled

50 mA/div

20V/div

10 µs/div

VIN = 36V

VOUT =3.3V

IOUT =200 mA

VOUT

1V/div

VIN

20V/div

80 µs/div

VOUT

1V/div

VIN = 12V

VOUT =3.3V

IOUT = 200 mA

80 µs/div

2V/div

VIN = 12V

VOUT =3.3V

Load Step from

100 mA to 500 mA

VOUT

50 mV/div

AC coupled

200 µs/div

IOUT

200 mA/div

VOUT =3.3V

IOUT = 200 mA

Line Step from

5V to 24V

200 µs/div

VOUT

100 mV/div

AC coupled

VIN

10V/div

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