MAX20021 datasheet(6/16 Pages) MAXIM

Part #	MAX20021

Description	Step-Down DC-DC Converters

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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6 / 16 page

MAX20021/MAX20022

Automotive Quad, Low-Voltage

Step-Down DC-DC Converters

Maxim Integrated │ 6

www.maximintegrated.com

Typical Operating Characteristics (continued)

(VA = VPV1 = VPV2 = VPV3 = VPV4 = 5.0V; TA = +25ºC, unless otherwise noted.)

SHORT-CIRCUIT BEHAVIOR

MAX20021 toc08

400ns/div

VOUT3

2V/div

VLX3

2V/div

IOUT3

1A/div

LINE TRANSIENT, (VOUT1 = 3.3V)

MAX20021 toc10

10ms/div

VPV1

1V/div

VOUT1

50mV/div

VPV1 = 3.8V

VPV1 = 5.2V

VPV1 = 3.8V

LOAD TRANSIENT, (VOUT1 = 3.3V)

MAX20021 toc09

10µs/div

IOUT1

500mA/div

VOUT1

100mV/div

P-CHANNEL SWITCH RESISTANCE

vs. SUPPLY VOLTAGE

VPV_ (V)

5.7

5.2

4.7

4.2

3.7

3.2

0.05

0.10

0.15

0.20

0.25

0.30

0.35

2.7

TA = +125ºC

TA = -40ºC

TA = +25ºC

SWITCHING FREQUENCY

vs. TEMPERATURE

100

101

102

103

80 100 120

TEMPERATURE (°C)

-40 -20

-60

140

DROPOUT VOLTAGE

vs. LOAD CURRENT (BUCK 1)

100

150

200

250

300

350

IOUT1 (A)

0.8

0.7

0.9

0.6

0.5

0.2

0.1

0.4

0.3

1.0

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