MAX15023 Maxim Integrated Products, MAX15023 Datasheet - Page 4

• Manufacturer Part Number: MAX15023
• Description: Dual-Output Synchronous Buck Controller
• Manufacturer: Maxim Integrated Products

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Wide 4.5V to 28V Input, Dual-Output
Synchronous Buck Controller
ELECTRICAL CHARACTERISTICS (continued)
(V
(Note 3)
Note 3: All Electrical Characteristics limits over temperature are 100% tested at room temperature and guaranteed by design over
Note 4: Select R
4
CURRENT LIMIT/HICCUP
Cycle-by-Cycle, Low-Side,
Source Peak Current-Limit
Threshold Adjustment Range
LIM_ Reference Current
LIM_ Reference Current TC
Number of Consecutive Current-
Limit Events to Hiccup
Hiccup Timeout
Cycle-by-Cycle, Low-Side,
Sink Peak Current-Limit Sense
Voltage
BOOST
Boost Switch Resistance
POWER-GOOD OUTPUTS
PGOOD_ Threshold
PGOOD_ Output Leakage
PGOOD_ Output Low Voltage
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
IN
_______________________________________________________________________________________
= 12V, R
the specified temperature range.
PARAMETER
T
= 33kΩ, C
T
as
R k
T
(
VCC
Ω =
)
= 4.7μF, C
(
f
SW
I
V
SYMBOL
LEAK_PGD
(
PGOOD_L
kHz
24806
I
LIM_
IN
))
= 1μF, T
1 0663
.
Source peak limit = V
V
V
Out of soft-start
V
V
V
V
I
Temperature rising
Temperature falling
PGOOD_
LIM_
LIM_
IN
FB_
FB_
PGOOD_
A
×
= V
= -40°C to +85°C, unless otherwise noted. Typical values are at T
rising
falling
(
= 0.3V to 3V, T
= 0.3V
24806
CC
= 2mA, EN_ = SGND
= 28V, V
= 5.2V, I
CONDITIONS
has a
EN_
BST_
A
LIM_
farad
= 5V, V
= +25°C
1
= 10mA
/10
unit
FB_
).
= 0.8V
88.5
85.5
MIN
30
45
V
+150
2400
7936
TYP
92.5
89.5
L IM _
4.5
50
24
20
7
/
MAX
96.5
93.5
300
0.4
55
8
1
V
FB( N OM IN A L)
A
Switching
ppm/°C
UNITS
Events
cycles
= +25°C.)
mV
μA
μA
°C
°C
%
Ω
V
V