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MAX17497A

AC-DC and DC-DC Peak Current-Mode Converters with Integrated Step-Down Regulator

Maxim Integrated 

MAX17497A/MAX17497B

AC-DC and DC-DC Peak Current-Mode Converters

with Integrated Step-Down Regulator

Typical Operating Characteristics (continued)

(VIN = +15V, VEN/UVLO = +2V, COMPF = open, CIN = 1FF, CVCC = 1FF, TA = TJ = -40NC to +125NC, unless otherwise noted. Typical

values are at TA = +25NC.)

TRANSIENT RESPONSE

(FLYBACK-15V OUTPUT)

MAX17497A/B toc16

BODE PLOT (FLYBACK CONVERTER)

MAX17497A/B toc17

VOUTF (AC)

200mV/div

1ms /div

ILOAD

0.5A /div

INB WAKE-UP LEVEL vs. TEMPERATURE

6.48

MAX17497A/B toc18

6.47

6.46

6.45

6.44

6.43

6.42

6.41

-40 -20

0 20 40 60 80 100 120

TEMPERATURE (°C)

3.328

VOUTB vs. INB VOLTAGE

MAX17497A/B toc20

3.325

3.322

3.319

3.316

3.313

3.310

6

8

10

12

14

16

INB VOLTAGE (V)

Maxim Integrated

PHASE

36°/div

BW = 6.9kHz

PM = 55°

6 7 891

2 3 4 5 6 7891

0dBm

GAIN

10dB/div

2 34

VOUTB vs. TEMPERATURE

3.34

3.33

3.32

3.31

3.30

3.29

3.28

3.27

3.26

-40 -20 0

20 40 60 80

TEMPERATURE (°C)

LXB AND INDUCTOR WAVEFORM

MAX17497A/B toc21

ILXB

0.5A /div

400ns /div

VLXB

5V/div

  8

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