MCP1661 datasheet(6/34 Pages) MICROCHIP

номер детали	MCP1661

подробное описание детали	High-Voltage Integrated Switch PWM Boost Regulator with UVLO

PDF	34 Pages

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производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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6 / 34 page

MCP1661

DS20005315B-page 6

 2014-2015 Microchip Technology Inc.

Note: Unless otherwise indicated, VIN =3.3V, IOUT =20mA, VOUT =12V, CIN =COUT = 10 µF, X7R ceramic,

L= 4.7 µH, TA = 25°C, 5-lead SOT-23 package.

FIGURE 2-7:

Inductor Peak Current Limit

vs. Ambient Temperature.

FIGURE 2-8:

No Load Input Current, IIN0

vs. VIN (EN = VIN).

FIGURE 2-9:

Shutdown Quiescent

Current, IQSHDN vs. VIN (EN = GND).

FIGURE 2-10:

No Load Input Current, IIN0

vs. Ambient Temperature.

FIGURE 2-11:

fSW vs. Ambient

Temperature.

FIGURE 2-12:

PWM Pulse Skipping Mode

Threshold.

0.5

0.7

0.9

1.1

1.3

1.5

-40 -25 -10

95 110 125

Ambient Temperature (°C)

IN = 5.0V

OUT = 12.0V

150

175

200

225

250

275

300

2.3

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

Input Voltage (V)

OUT = 6.0V

OUT = 12.0V

0.00

0.05

0.10

0.15

0.20

0.25

0.30

1.8

2.2

2.6

3.4

3.8

4.2

4.6

Input Voltage (V)

Note: Without FB Resistor Divider Current

200

400

600

800

1000

1200

1400

1600

1800

2000

-40 -25 -10

20 35 50 65 80 95 110 125

Ambient Temperature (°C)

IN= 3.0V

IN = 5.5V

OUT = 12V

IN = 2.3V

425

450

475

500

525

550

575

-40 -25 -10

95 110 125

Ambient Temperature (°C)

IN = 3.0V

OUT = 100 mA

OUT (mA)

OUT = 24.0V

OUT = 12.0V

OUT = 6.0V

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