Rainbow-electronics MAX15023 Instrukcja Użytkownika Pobierz pdf (Strona 5)

MAX15023

Wide 4.5V to 28V Input, Dual-Output

Synchronous Buck Controller

_______________________________________________________________________________________ 5

EFFICIENCY

vs. LOAD CURRENT

MAX15023 toc01

LOAD CURRENT (A)

EFFICIENCY (%)

101

0.1 100

= 12V

OUT1

= 1.2V

OUT1

= 3.3V

EFFICIENCY

vs. LOAD CURRENT

MAX15023 toc02

LOAD CURRENT (A)

EFFICIENCY (%)

101

100

0.1 100

OUT1

= 1.2V

OUT1

= 3.3V

= V

= 5V

OUTPUT VOLTAGE CHANGE

vs. LOAD CURRENT

MAX15023 toc03

LOAD CURRENT (A)

OUTPUT VOLTAGE CHANGE (%)

108642

99.2

99.4

99.6

99.8

100.0

100.2

100.4

100.6

100.8

101.0

99.0

012

OUT1

VOLTAGE

vs. LOAD CURRENT

MAX15023 toc04

LOAD CURRENT (mA)

SUPPLY VOLTAGE (V)

13512015 30 45 75 9060 105

5.05

5.10

5.15

5.20

5.25

5.30

5.35

5.40

5.00

0 150

VOLTAGE

vs. IN VOLTAGE

MAX15023 toc05

IN VOLTAGE (V)

VOLTAGE (V)

242016128

4.15

4.30

4.45

4.60

4.75

4.90

5.05

5.20

5.35

5.50

4.00

428

LOAD

= 5mA

LOAD

= 50mA

VOLTAGE

vs. TEMPERATURE

MAX15023 toc06

TEMPERATURE (°C)

SUPPLY VOLTAGE (V)

303510-15

5.05

5.10

5.15

5.20

5.25

5.30

5.35

5.40

5.45

5.50

5.00

-40 85

LOAD

= 5mA

SWITCHING FREQUENCY

vs. R

MAX15023 toc07

(kΩ)

SWITCHING FREQUENCY (kHz)

807050 6030 4020

200

300

400

500

600

700

800

900

1000

1100

1200

1300

100

10 90

SWITCHING FREQUENCY

vs. TEMPERATURE

MAX15023 toc08

TEMPERATURE (°C)

SWITCHING FREQUENCY (kHz)

603510-15

250

300

350

400

450

500

550

600

650

700

750

800

200

-40 85

= 22.1kΩ

= 33.2kΩ

= 66.5kΩ

CURRENT

vs. SWITCHING FREQUENCY

MAX15023 toc09

SWITCHING FREQUENCY (kHz)

CURRENT (mA)

900800700600500400300

120

150

180

210

200 1000

= 12V

= C

= 10nF

= C

= 4.7nF

= C

= 1nF

= C

= 0nF

Typical Operating Characteristics

(Supply = IN = 12V, unless otherwise noted. See

Typical Application Circuit

of Figure 6.)

1 2 3 4 5 6 7 8 9 10 ... 26 27

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Rainbow-electronics MAX15023 Instrukcja Użytkownika Strona 5

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