Electrical characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX758A User Manual
Page 3
MAX1605
28V Internal Switch LCD Bias Supply
in SOT23
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
(V
CC
= SHDN = 3.3V, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= SHDN = 3.3V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LIM Input Low Level
2.4V
≤ V
CC
≤ 5.5V
0.4
V
LIM Input Float Level
2.4V
≤ V
CC
≤ 5.5V,
I
LIM
=
±0.5µA
( V
C C
/ 2) -
0.2V
( V
C C
/ 2)
+ 0.2V
V
LIM Input High Level
2.4V
≤ V
CC
≤ 5.5V
V
CC
- 0.4V
V
SHDN = V
CC
, LIM = GND or V
CC
-2
2
LIM Input Bias Current
I
LIM
SHDN = GND
0.1
1
µA
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
Supply Voltage
V
CC
(Note 2)
2.4
5.5
V
Inductor Input Voltage Range
V
IN
(Note 2)
0.8
V
OUT
V
V
CC
Undervoltage Lockout
V
UVLO
V
CC
falling, 50mV typical hysteresis
2.0
2.37
V
Quiescent Supply Current
I
CC
V
FB
= 1.3V
35
µA
Shutdown Supply Current
SHDN = GND
1
µA
Feedback Set Point
V
FB
1.215
1.285
V
Feedback Input Bias Current
I
FB
V
FB
= 1.3V
100
nA
LX
LX Voltage Range
V
LX
28
V
LIM = V
CC
0.35
0.58
LIM = floating
0.18
0.30
LX Switch Current Limit
I
LX(MAX)
LIM = GND
0.08
0.17
A
LX On-Resistance
R
LX
V
CC
= 3.3V, I
LX
= 100mA
2
Ω
LX Leakage Current
V
LX
= 28V
2
µA
Maximum LX On-Time
t
ON
9
17
µs
V
FB
> 1.1V
0.75
1.25
Minimum LX Off-Time
t
OFF
V
FB
< 0.8V
3.8
6.0
µs
CONTROL INPUTS
V
IH
2.4V
≤ V
CC
≤ 5.5V
0.8
×
V
CC
SHDN Input Threshold
V
IL
2.4V
≤ V
CC
≤ 5.5V
0.2
×
V
CC
V
SHDN Input Bias Current
I
SHDN
V
CC
= 5.5V, V
SHDN
= 0 to 5.5V
-1
1
µA