MAX1808EUB+ Maxim Integrated, MAX1808EUB+ Datasheet - Page 4

• Manufacturer Part Number: MAX1808EUB+
• Description: Current & Power Monitors & Regulators
• Manufacturer: Maxim Integrated

ELECTRICAL CHARACTERISTICS (continued)
(V
T
Low-Cost, Small, 4.5V to 28V Wide Operating
Range, DC-DC Synchronous Buck Controller
MAX15026
Note 2: All devices are 100% tested at room temperature and guaranteed by design over the specified temperature range.
Note 3: Select R
Note 4: T
Note 5: 10ns for MAX15026B, 18ns for the MAX15026C/D.
Note 6: 10ns for MAX15026B, 20ns for the MAX15026C/D.
4
A
LIM Reference Current
LIM Reference Current Tempco
Number of Consecutive Current-
Limit Events to Hiccup
Soft-Start Timeout
Soft-Start Restart Timeout
Hiccup Timeout
Peak Low-Side Sink Current
Limit
BOOST
Boost Switch Resistance
POWER-GOOD OUTPUT
PGOOD Threshold Rising
PGOOD Threshold Falling
PGOOD Output Leakage
PGOOD Output Low Voltage
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
IN
= T
= 12V, R
J
= -40°C to +125°C (MAX15026B/C/DATD+), unless otherwise noted. Typical values are at T
A
PARAMETER
= +25°C.
RT
= 27kΩ, R
RT
as:
R
RT
LIM
=
= 30kΩ, C
f
SW
+
I
V
17.3 10
SYMBOL
LEAK_PGD
(
1x10 )x(f
PGOOD_L
I
LIM
VCC
×
−
7
= 4.7µF, C
9
SW
V
V
Out of soft-start
Sink limit = 1.5V, R
V
V
I
Temperature rising
Temperature falling
PGOOD
LIM
LIM
IN
IN
2
)
= V
= V
= 0.3V to 3V (Note 4)
= 0.3V to 3V
where f
IN
CC
PGOOD
= 2mA, EN = GND
= 1µF, T
= 5V, I
CONDITIONS
SW
= 28V, V
BST
is in Hertz.
A
LIM
= -40°C to +85°C (MAX15026B/CETD+, MAX15026BETD/V+),
= 10mA
= 30kΩ (Note 4)
EN
= 5V, V
FB
= 1V
MIN
45
90
88
-1
A
= +25°C.) (Note 2)
+150
2300
4096
8192
4096
TYP
94.5
50
75
92
20
7
3
MAX
97.5
94.5
0.4
55
+1
8
Maxim Integrated
Switching
Switching
Switching
ppm/°C
Cycles
Cycles
Cycles
UNITS
Events
% V
%V
mV
µA
µA
°C
°C
Ω
V
FB
FB