MCP16252 datasheet(8/34 Pages) MICROCHIP

Teilenummer	MCP16252

Bauteilbeschribung	Low Quiescent Current, PFM/PWM Synchronous Boost Regulator

PDF	34 Pages

Scroll/Zoom	100%

Hersteller	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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8 / 34 page

MCP16251/2

DS25173A-page 8

 2013 Microchip Technology Inc.

Note: Unless otherwise indicated, VIN = EN = 1.5V, COUT = CIN = 10 µF, L = 4.7 µH, VOUT = 3.3V, ILOAD = 0 mA,

TA = +25°C, SOT-23 package.

FIGURE 2-19:

MCP16251 3.3V VOUT

PWM Mode Waveforms

FIGURE 2-20:

3.3V Start-up After Enable.

FIGURE 2-21:

3.3V Start-Up When

VIN = VENABLE.

FIGURE 2-22:

MCP16251 3.3V VOUT Load

Transient Waveforms.

FIGURE 2-23:

3.3V VOUT Line Transient

Waveforms.

FIGURE 2-24:

MCP16251 3.3V No Load

VOUT PFM Mode Output Ripple.

VOUT 50 mV/div

IOUT =50 mA

IL 200 mA/div

VSW

2µs/div

2V/div

AC Coupled

VOUT =3.3V

VIN =1.5V

IOUT =15 mA

VOUT 2 V/div

VEN

400 µs/div

2 V/div

VOUT 2V/div

IOUT =15 mA

IL 100 mA/div

VIN

400 µs/div

1V/div

VOUT 100 mV/div

AC Coupled

ISTEP = 1 mA to 75 mA

IOUT 50 mA/div

400 µs/div

PFM Mode

PWM Mode

VSTEP from 1V to 2.5V

IOUT =20 mA

VOUT 100 mV/div

1ms/div

AC Coupled

VIN

1 V/div

VOUT 100 mV/div

AC Coupled

IOUT =0 mA

IL 20 mA/div

100 ms/div

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