MCP16251_16 datasheet(6/32 Pages) MICROCHIP

Part #	MCP16251

Description	Low Quiescent Current, PFM/PWM Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option

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Manufacturer	MICROCHIP [Microchip Technology]

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6 / 32 page

MCP16251/2

DS20005173B-page 6

 2013 - 2016 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 2-7:

3.3V VOUT vs. Ambient

Temperature.

FIGURE 2-8:

3.3V VOUT vs. Ambient

Temperature.

FIGURE 2-9:

3.3V VOUT vs. VIN.

FIGURE 2-10:

Maximum IOUT vs. VIN, after

Start-up, VOUT Maximum 5% below Regulation

Point.

FIGURE 2-11:

FOSC vs. Ambient

Temperature.

FIGURE 2-12:

VIN Start-Up vs.

Temperature into Resistive Load and Constant

Current.

329

3.30

3.31

3.32

3.33

I

LOAD = 1 mA

I

LOAD = 10 mA

I

LOAD = 50 mA

3.27

3.28

3.29

-40

-25

-10

5

2035506580

Ambient Temperature (°C)

3.28

3.29

3.30

3.31

3.32

V

IN = 1.2V

V

IN = 1.5V

V

=24V

3.25

3.26

3.27

-40

-25

-10

5

2035506580

Ambient Temperature (°C)

I

LOAD = 20 mA

V

IN = 0.9V

V

IN = 2.4V

3.26

3.27

3.28

3.29

3.30

3.31

3.32

3.33

1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8

Input Voltage (V)

I

LOAD = 50 mA

T

A = +25°C

T

A = +85°C

T

A = -40°C

0

50

100

150

200

250

300

350

400

450

500

0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

3.3 3.6 3.9 4.2 4.5

Input Voltage (V)

V

OUT = 3.3V

V

OUT = 2.0V

V

OUT = 5.0V

485

490

495

500

505

510

470

475

480

-40

-25

-10

5

2035506580

Ambient Temperature (°C)

08

0.9

1

1.1

1.2

V

OUT = 3.3V

---- Electronic Load, CC

Resistive Load

I

LOAD = 20 mA

0.6

0.7

0.8

-40

-25

-10

5

20

35

50

65

80

Ambient Temperature (°C)

I

LOAD = 1 mA

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