MAX8715 Datasheet, PDF (4/14 Pages) Maxim Integrated Products – Low-Noise Step-Up DC-DC Converters

Low-Noise Step-Up DC-DC Converters
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = SHDN = 3V, FREQ = GND, T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
N-CHANNEL SWITCH
SYMBOL
CONDITIONS
MIN TYP MAX
Current Limit
V_FB = 1V,
MAX1790
I_LIM
duty cycle =
65% (Note 1)
MAX8715
1.2
2.3
1.8
3.0
On-Resistance
Current-Sense Transresistance
CONTROL INPUTS
Input Low Voltage
Input High Voltage
R_ON
R_CS
MAX1790
MAX8715
MAX1790
MAX8715
V_IL
SHDN, FREQ
V_IH
SHDN, FREQ
0.30
0.20
0.7 x V_IN
0.5
0.35
0.65
0.43
0.3 x V_IN
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.
UNITS
A
Ω
V/A
V
V
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