Electrical characteristics (continued) – Rainbow Electronics MAX8715 User Manual
Page 4
MAX1790/MAX8715
Low-Noise Step-Up DC-DC Converters
4
_______________________________________________________________________________________
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.