MCP1640B-IMC datasheet(7/32 Pages) MICROCHIP

Part #	MCP1640B-IMC

Description	0.65V Start-Up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option

PDF	32 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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7 / 32 page

 2010-2015 Microchip Technology Inc.

DS20002234D-page 7

MCP1640/B/C/D

Note: Unless otherwise indicated, VIN = EN = 1.2V, COUT =CIN =10 µF, L =4.7 µH, VOUT =3.3V, ILOAD =15 mA, TA =+25°C.

FIGURE 2-13:

Input No Load Current vs.

VIN.

FIGURE 2-14:

N-Channel and P-Channel

RDSON vs. > of VIN or VOUT.

FIGURE 2-15:

Average of PFM/PWM

Threshold Current vs. VIN.

FIGURE 2-16:

MCP1640 3.3V VOUT PFM

Mode Waveforms.

FIGURE 2-17:

MCP1640B 3.3V VOUT

PWM Mode Waveforms.

FIGURE 2-18:

MCP1640/B High Load

Waveforms.

100

1000

10000

0.8

1.1

1.4

1.7

2.3

2.6

2.9

3.2

3.5

IN (V)

OUT = 3.3V

OUT = 5.0V

OUT = 2.0V

OUT = 3.3V

OUT = 5.0V

PWM / PFM

PWM Only

11.5

22.5

33.5

44.5

> V

IN or VOUT

P - Channel

N - Channel

00.511.5

22.5

33.5

44.5

IN (V)

OUT = 2.0V

OUT = 3.3V

OUT = 5.0V

IOUT = 1 mA

1 µs/DIV

VOUT

20 mV/DIV

Coupled

VSW

2V/DIV

0.05 mA/DIV

MCP1640B-IMC Datasheet(PDF) 7 Page - Microchip Technology

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