MAX1674/MAX1675/MAX1676
High-Efficiency, Low-Supply-Current,
Compact, Step-Up DC-DC Converters
4 _______________________________________________________________________________________
Typical Operating Characteristics
(L = 22µH, C
IN
= 47µF, C
OUT
= 47µF 0.1µF, C
REF
= 0.1µF, T
A
= +25°C, unless otherwise noted.)
V
LBO
= 5.5V, V
LBI
= 5.5V
V
SHDN
= 0 or V
OUT
MAX1676, CLSEL = OUT
CONDITIONS
µA1I
LBO
LBO Off Leakage Current
nA75I
SHDN
SHDN Input Current
µA3I
CLSEL
CLSEL Input Current
UNITSMIN MAXSYMBOLPARAMETER
ELECTRICAL CHARACTERISTICS (continued)
(V
BATT
= 2V, FB = OUT, R
L
= ∞, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 4)
Note 1: Start-up voltage operation is guaranteed with the addition of a Schottky MBR0520 external diode between the input and
output.
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.
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