MCP16502 datasheet(13/86 Pages) MICROCHIP

13 / 86 page

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DS20006275D-page 13

MCP16502

FIGURE 2-7:

Buck4 Efficiency vs. Load

Current (VOUT3 =1.8V).

FIGURE 2-8:

Switching Frequency vs.

Temperature – Active Mode (LPM = Low,

PWRHLD = High, HPM = Low).

FIGURE 2-9:

Buck3 Output Voltage vs.

Temperature – VOUT3 = 1.25V, Active Mode

(LPM = Low, PWRHLD = High, HPM = Low).

FIGURE 2-10:

MOSFET RDS(ON) vs.

Temperature.

FIGURE 2-11:

LDO1 Output Voltage vs.

Output Current and Temperature (Load

Regulation – VLOUT1 =3.3V).

FIGURE 2-12:

LDO2 Output Voltage vs.

Output Current and Temperature (VLOUT2 =1.8V).

100

0.1

1.0

10.0

100.0

1000.0

OUT (mA)

IN = 5V

FPWM

AUTO PFM

1.80

1.85

1.90

1.95

2.00

2.05

2.10

2.15

2.20

-40 -25 -10

20 35 50 65 80 95 110 125

Ambient Temperature (°C)

Buck1: V

OUT1 = 3.3V

IN = 5V

Buck2: V

OUT2 = 1.8V

IN = 3.6V

Buck3: V

OUT3 = 1.25V

IN = 3.3V

Buck1

Buck2

Buck3

1.230

1.235

1.240

1.245

1.250

1.255

1.260

-40 -25 -10

20 35 50 65 80 95 110 125

Ambient Temperature (°C)

OUT3 = 1.25V

IN = 5V

0.10

0.11

0.12

0.13

0.14

0.15

0.16

0.17

0.18

0.19

0.20

-40 -25 -10

20 35

65 80

95 110 125

Ambient Temperature (°C)

P-MOS

N-MOS

IN = 5V

3.260

3.265

3.270

3.275

3.280

3.285

3.290

3.295

3.300

3.305

3.310

100

150

200

250

300

Output Current (mA)

A = -40°C

A = 25°C

IN = 5V

A = 125°C

1.775

1.780

1.785

1.790

1.795

1.800

1.805

1.810

100

150

200

250

300

Output Current (mA)

A = -40°C

A = 25°C

IN = 5V

A = 125°C

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