Datasheet

MAX5025–MAX5028
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, SHDN = V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX5025, V
CC
= 4.5V to 11V 1.19 1.25 1.31
MAX5027, V
CC
= 4.5V to 11V 28.5 30.0 31.5
MAX5026, V
CC
= 3.3V to 11V 1.212 1.25 1.288
FB Set Point V
FB
MAX5028, V
CC
= 3.3V to 11V 29.0 30 31
V
MAX5025/MAX5026, FB = 1V 110 310 nA
FB Input Bias Current I
FB
MAX5027/MAX5028, FB = 30V 100 170 µA
Output Voltage
Adjustment Range
MAX5025/MAX5026 V
CC
+ 1 36 V
LX OUTPUT
MAX5026/MAX5028,
V
CC
= 3V
2.0 4.0
V
CC
= 5V 1.3 3.0
LX On-Resistance R
ON
I
LX
= 40mA
V
CC
= 11V 1.0 2.5
Ω
Switch Current Limit I
LIM
Note 2 260 mA
MAX5025/MAX5026,
V
FB
= 1.4V
LX Leakage Current V
LX
= 40V
MAX5027/MAX5028,
V
FB
= 35V
0.01 10 µA
LOGIC INPUT: SHDN
Input Low Level V
IL
0.8 V
Input High Level V
IH
2.4 V
Input Bias Current -1 1 µA
Note 1: All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2: Switch current-limit accuracy is typically ±20% and is a function of the input voltage. I
LIM
= (V
IN
/5) (260mA).
500kHz, 36V Output, SOT23,
Step-Up DC-DC Converters
_______________________________________________________________________________________ 3