Re g u la t e d , 1 2 5 m A-Ou t p u t ,
Ch a rg e -P u m p DC-DC In ve rt e r
MAX1673
ELECTRICAL CHARACTERISTICS (continued)
(V = V
IN
= +5V, C = 10µF, C
= 22µF, C
= 2.2µF, T = -40°C to +85°C, unless otherwise noted. Typical values are at
FLY A
SHDN
IN
OUT
T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
250
205
-25
TYP
MAX
460
515
25
UNITS
kHz
T
= +25°C
350
Switching Frequency
(LIN Mode)
A
ƒ
OSC
T
A
= -40°C to +85°C
FB Threshold
V
FBT
0
mV
LIN/SKIP = GND (Skip mode)
LIN/SKIP = IN
(LIN mode)
150
600
100
1
FB Input Bias Current
I
FB
V
= -25mV
= -25mV
nA
FB
LIN/SKIP = GND
(Skip mode)
V
FB
1
Input Bias Current
(SHDN, LIN/SKIP)
µA
V
Logic High Input
(SHDN, LIN/SKIP)
V
IH
2V ≤ V ≤ 5.5V
0.7 x V
IN
IN
Logic Low Input
(SHDN, LIN/SKIP)
V
IL
2V ≤ V ≤ 5.5V
0.3 x V
IN
V
IN
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
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3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
