MAX1674EUA+T Maxim Integrated Products, MAX1674EUA+T Datasheet - Page 4

• Manufacturer Part Number: MAX1674EUA+T
• Description: IC DC-DC CONV HI EFF 8-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

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