Rainbow Electronics MAX8715 - Manual (Page 4)

MAX1790/MAX8715
Low-Noise Step-Up DC-DC Converters
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ELECTRICAL CHARACTERISTICS (continued)
(V IN = SHDN = 3V, FREQ = GND, T A = -40°C to +85°C , unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
N-CHANNEL SWITCH
MAX1790 1.2 2.3
Current Limit I LIM
V FB = 1V,
duty cycle =
65% (Note 1)
MAX8715 1.8 3.0
A
MAX1790 0.5
On-Resistance R ON
MAX8715 0.35
Ω
MAX1790 0.30 0.65
Current-Sense Transresistance R CS
MAX8715 0.20 0.43
V/A
CONTROL INPUTS
Input Low Voltage V IL
SHDN, FREQ 0.3 x V IN V
Input High Voltage V IH
SHDN, FREQ 0.7 x V IN V
Note 1: Current limit varies with duty cycle due to slope compensation. See the Output-Current Capability section.
Note 2: Specifications to -40°C are guaranteed by design and not production tested.