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MAX20021 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part # MAX20021
Description  Step-Down DC-DC Converters
PDF  16 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX20021 Datasheet(HTML) 5 Page - Maxim Integrated Products

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MAX20021/MAX20022
Automotive Quad, Low-Voltage
Step-Down DC-DC Converters
Maxim Integrated │ 5
www.maximintegrated.com
Typical Operating Characteristics
(VA = VPV1 = VPV2 = VPV3 = VPV4 = 5.0V; TA = +25ºC, unless otherwise noted.)
BUCK EFFICIENCY (3.2MHz)
vs. LOAD CURRENT
LOAD CURRENT (A)
0.1000
0.0100
0.0010
0.0001
1.0000
10
20
30
40
50
60
70
80
90
100
0
VOUT2 = 1.2V
VOUT4 = 1.8V
VOUT1 = 3.3V
VOUT3 = 2.65V
fSW = 3.2MHz, VPV_ = 5V
LX LEAKAGE CURRENT
vs. TEMPERATURE
TEMPERATURE (ºC)
80 100 120
40 60
-40 -20
20
0
0
100
200
300
400
500
600
700
800
-100
-60
140
LX_ TO PV_
LX_ TO PGND_
BUCK EFFICIENCY (2.2MHz)
vs. LOAD CURRENT
LOAD CURRENT (A)
0.1000
0.0100
0.0010
0.0001
1.0000
10
20
30
40
50
60
70
80
90
100
0
fSW = 2.2MHz, VPV_ = 5V
VOUT2 = 1.2V
VOUT4 = 1.8V
VOUT1 = 3.3V
VOUT3 = 2.65V
LOAD REGULATION (BUCK 1)
IOUT1 (A)
0.8
0.7
0.9
0.6
0.5
0.2
0.1
0.4
0.3
3.22
3.24
3.26
3.28
3.32
3.30
3.34
3.36
3.20
0
1.0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
5.2
4.7
4.2
3.7
3.2
5
10
15
20
25
30
0
2.7
5.7
TA = -40ºC
TA = +25ºC
TA = +125ºC
VPV_ = VA = VEN_
LINE REGULATION (BUCK 2)
VPV2 (V)
5.2
4.7
4.2
3.7
3.2
99.8
100.0
100.2
100.4
100.6
100.8
101.0
99.6
2.7
5.7
TA = +125ºC
TA = +25ºC
TA = -40ºC
STARTUP SEQUENCE
MAX20021 toc07
2ms/div
VOUT1
VOUT2
VOUT3
VOUT4



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