MAX1674EUA+T Maxim Integrated Products, MAX1674EUA+T Datasheet - Page 4
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MAX1674EUA+T
Manufacturer Part Number
MAX1674EUA+T
Description
IC DC-DC CONV HI EFF 8-UMAX
Manufacturer
Maxim Integrated Products
Type
Step-Up (Boost)r
Datasheet
1.MAX1674EUA.pdf
(12 pages)
Specifications of MAX1674EUA+T
Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
3.3V, 5V, Adj
Current - Output
420mA
Frequency - Switching
500kHz
Voltage - Input
0.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Power - Output
330mW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ELECTRICAL CHARACTERISTICS (continued)
(V
High-Efficiency, Low-Supply-Current,
Compact, Step-Up DC-DC Converters
4
Note 1: Start-up voltage operation is guaranteed with the addition of a Schottky MBR0520 external diode between the input and
Note 2: Steady-state output current indicates that the device maintains output voltage regulation under load. See Figures 5 and 6.
Note 3: Device is bootstrapped (power to the IC comes from OUT). This correlates directly with the actual battery supply.
Note 4: Specifications to -40°C are guaranteed by design, not production tested.
(L = 22µH, C
CLSEL Input Current
SHDN Input Current
LBO Off Leakage Current
BATT
100
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
0
0.01
= 2V, FB = OUT, R
output.
PARAMETER
EFFICIENCY vs. LOAD CURRENT
0.1
IN
V
= 47µF, C
100
IN
LOAD CURRENT (mA)
90
80
70
60
50
40
30
20
10
= 1.2V
0
0.01
V
1
IN
= 2.4V
EFFICIENCY vs. LOAD CURRENT
OUT
L
0.1
10
= ∞, T
LOAD CURRENT (mA)
V
I
= 47µF
V
LIMIT
OUT
IN
V
IN
100
= 1.2V
1
A
= 5V
= 500mA
= 3.6V
SYMBOL
= -40°C to +85°C, unless otherwise noted.) (Note 4)
I
I
CLSEL
I
SHDN
LBO
1000
10
0.1µF, C
V
V
I
LIMIT
IN
OUT
100
= 2.4V
MAX1676, CLSEL = OUT
V
V
= 3.3V
REF
= 1A
SHDN
LBO
100
90
80
70
60
50
40
30
20
10
0
1000
0.01
= 0.1µF, T
= 5.5V, V
= 0 or V
EFFICIENCY vs. LOAD CURRENT
0.1
V
OUT
LBI
A
IN
LOAD CURRENT (mA)
CONDITIONS
= 1.2V
= +25°C, unless otherwise noted.)
= 5.5V
1
V
Typical Operating Characteristics
IN
10
= 2.4V
V
I
V
LIMIT
100
OUT
IN
= 3.6V
1.300
1.298
1.296
1.294
1.292
1.290
= 5V
= 1A
1000
-40
REFERENCE OUTPUT VOLTAGE
-20
100
vs. TEMPERATURE
90
80
70
60
50
40
30
20
10
0
0
TEMPERATURE (°C)
0.01
MIN
I
I
REF
20
REF
EFFICIENCY vs. LOAD CURRENT
= 100µA
= 0
0.1
40
LOAD CURRENT (mA)
V
60
IN
= 1.2V
1
80
MAX
10
75
100
3
1
V
I
LIMIT
OUT
V
IN
100
= 3.3V
= 500mA
UNITS
= 2.4V
µA
nA
µA
1000