MAX5033DUPA datasheet(7/17 Pages) MAXIM

Part #	MAX5033DUPA

Description	500mA, 76V, High-Efficiency, MAXPower Step-Down DC-DC Converter

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Manufacturer	MAXIM [Maxim Integrated Products]

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7 / 17 page

500mA, 76V, High-Efficiency, MAXPower

Step-Down DC-DC Converter

_______________________________________________________________________________________

7

Typical Operating Characteristics (continued)

(VIN = 12V, VON/OFF = 12V, TA = -40

°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. See the Typical

Application Circuit, if applicable.)

MAX5033BASA

LX WAVEFORMS

MAX5033 toc19

4

µs/div

B

0

A

A: SWITCH VOLTAGE (LX PIN) 20V/div, VIN = 48V

B: INDUCTOR CURRENT, 200mA/div, (IOUT = 500mA)

MAX5033BASA LX WAVEFORMS

MAX5033 toc20

4

µs/div

B

0

A

0

A: SWITCH VOLTAGE, 20V/div, VIN = 48V

B: INDUCTOR CURRENT, 100mA/div (IOUT = 30mA)

MAX5033BASA LX WAVEFORMS

MAX5033 toc21

4

µs/div

B

A

A: SWITCH VOLTAGE (LX PIN), 20V/div, VIN = 48V

B: INDUCTOR CURRENT, 100mA/div (IOUT = 0)

0

MAX5033BASA STARTUP WAVEFORM

(IO = 0)

MAX5033 toc22

1ms/div

B

A

A: VON/OFF, 2V/div

B: VOUT, 2V/div

MAX5033BASA STARTUP WAVEFORM

(IO = 0.5A)

MAX5033 toc23

1ms/div

B

A

A: VON/OFF, 2V/div

B: VOUT, 2V/div

PEAK SWITCH CURRENT LIMIT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

56

66

46

36

26

16

0.8

1.1

1.4

1.7

2.0

0.5

676

MAX5033BASA

VOUT = 5V

5% DROP IN VOUT

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