MAX5073 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX5073 Datasheet PDF : 25 Pages
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2.2MHz, Dual-Output Buck or Boost Converter
with Internal Power MOSFETs
(V+ = VL = 5.2V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
OUTPUT1 EFFICIENCY (BUCK CONVERTER)
vs. LOAD CURRENT
100
90 VIN = 5V
80
70
60
VIN = 12.0V
50
VIN = 16.0V
40
30
20
VOUT = 3.3V
10
fSW = 2.2MHz
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
LOAD (A)
OUTPUT1 VOLTAGE (BUCK CONVERTER)
vs. LOAD CURRENT
3.40
OUTPUT2 EFFICIENCY (BUCK CONVERTER)
vs. LOAD CURRENT
100
90
VIN = 5V
80
70
60
50
VIN = 12.0V
40
VIN = 16.0V
30
20
VOUT = 2.5V
10
fSW = 2.2MHz
0
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
LOAD (A)
OUTPUT2 VOLTAGE (BUCK CONVERTER)
vs. LOAD CURRENT
2.60
3.35
2.55
3.30
2.50
3.25
3.20
0
0.5
1.0
1.5
2.0
LOAD (A)
VL DROPOUT VOLTAGE vs. EACH CONVERTER
SWITCHING FREQUENCY
0.35
VIN = 5.5V
0.30
0.25
0.20
VIN = 5V
0.15
0.10
VIN = 4.5V
0.05
0
0
0.5 1.0 1.5 2.0 2.5
SWITCHING FREQUENCY (fSW) (MHz)
2.45
0
0.25
0.50
0.75
1.00
LOAD (A)
EACH CONVERTER SWITCHING FREQUENCY
vs. ROSC
10
1
0.1
0
20
40
60
80
ROSC (kΩ)
OUTPUT2 EFFICIENCY (BOOST CONVERTER)
vs. LOAD CURRENT
100
90
VIN = 5V
80
70
60
VIN = 3.3V
50
40
30
20
10
0
0.02
VOUT = 12V
fSW = 2.2MHz
0.08
0.14
0.20
LOAD (A)
VL OUTPUT VOLTAGE
vs. CONVERTER SWITCHING FREQUENCY
5.50
BOTH CONVERTERS SWITCHING
5.45
5.40
5.35
5.30
VIN = 23V
5.25
5.20
5.15
5.10
VIN = 5.5V
5.05
5.00
0.1 0.6 1.1 1.6 2.1 2.6
SWITCHING FREQUENCY (fSW) (MHz)
EACH CONVERTER SWITCHING FREQUENCY
vs. TEMPERATURE
10
2.2MHz
1.25MHz
1
0.6MHz
0.3MHz
0.1
-50
0
50
100
150
TEMPERATURE (°C)
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