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MAX858C/D Scheda tecnica(PDF) 3 Page - Maxim Integrated Products

Il numero della parte MAX858C/D
Spiegazioni elettronici  3.3V/5V or Adjustable-Output, Step-Up DC-DC Converters
PDF  12 Pages
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Produttore elettronici  MAXIM [Maxim Integrated Products]
Homepage  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX858C/D Scheda tecnica(HTML) 3 Page - Maxim Integrated Products

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3.3V/5V or Adjustable-Output,
Step-Up DC-DC Converters
_______________________________________________________________________________________
3
100
20
10
0
0.01
0.001
0.1
10
1
100
1000
MAX858/MAX859
EFFICIENCY vs. OUTPUT CURRENT
VOUT = 3.3V
40
30
50
LOAD CURRENT (mA)
60
70
80
90
VIN = 2.0V
VIN = 2.5V
VIN = 1.5V
100
20
10
0
0.01
0.001
0.1
10
1
100
1000
MAX858/MAX859
EFFICIENCY vs. OUTPUT CURRENT
VOUT = 5V
40
30
50
LOAD CURRENT (mA)
60
70
80
90
VIN = 2.5V
VIN = 3.3V
VIN = 1.5V
100
20
10
0
0.01
0.001
0.1
10
1
100
1000
MAX856/MAX857
EFFICIENCY vs. OUTPUT CURRENT
VOUT = 5V
40
30
50
LOAD CURRENT (mA)
60
70
80
90
VIN = 2.0V
VIN = 3.3V
VIN = 1.5V
100
20
10
0
0.01
0.001
0.1
10
1
100
1000
MAX856/MAX857
EFFICIENCY vs. OUTPUT CURRENT
VOUT = 3.3V
40
30
50
LOAD CURRENT (mA)
60
70
80
90
VIN = 2.0V
VIN = 2.5V
VIN = 1.5V
__________________________________________Typical Operating Characteristics
(Circuits of Figure 2, TA = +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(Circuits of Figure 2, VIN = 2.5V, ILOAD = 0mA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
Note 2: Supply current from the 3.3V output is measured with an ammeter between the 3.3V output and OUT pin. This current
correlates directly with actual battery supply current, but is reduced in value according to the step-up ratio and efficiency.
VOUT = 3.47V to keep the internal switch open when measuring the current into the device.
Note 3: Minimum value is production tested. Maximum value is guaranteed by design and is not production tested.
–
S
—
H
—
D
—
N
–
, 3/
–
5
–
Input Voltage Low
0.4
V
S
—
H
—
D
—
N
–
, 3/
–
5
–
Input Voltage High
1.6
V
S
—
H
—
D
—
N
–
, 3/
–
5
–
, FB, LBI Input Current
LBI = 1.5V, FB = 1.5V,
–
S
—
H
—
D
—
N
–
= 0V or 3V, 3/
–
5
–
= 0V or 3V
±100
nA
FB Voltage
MAX857/MAX859
1.22
1.25
1.28
V
Output Voltage Range
MAX857/MAX859, ILOAD = 0mA (Note 3)
2.7
6.0
V



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