MAX15023 Maxim Integrated Products, MAX15023 Datasheet - Page 3

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

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ELECTRICAL CHARACTERISTICS (continued)
(V
(Note 3)
COMP_ Swing (High)
COMP_ Swing (Low)
COMP_ Source/Sink Current
ENABLE (EN_)
EN_ Input High
EN_ Input Hysteresis
EN_ Input Leakage Current
OSCILLATOR
Switching Frequency
Switching Frequency
Adjustment Range
PWM Ramp Peak-to-Peak
Amplitude
PWM Ramp Valley
Phase Shift Between
Channels
Minimum Controllable On-Time
Maximum Duty Cycle
OUTPUT DRIVERS
DH_ On-Resistance
DL_ On-Resistance
DH_ Peak Current
DL_ Peak Current
DH_, DL_ Break-Before-Make
Time (Dead Time)
SOFT-START
Soft-Start Duration
Reference Voltage Steps
IN
= 12V, R
PARAMETER
T
= 33kΩ, C
_______________________________________________________________________________________
VCC
= 4.7μF, C
Wide 4.5V to 28V Input, Dual-Output
I
SYMBOL
V
LEAK_EN_
V
I
V
V
COMP_
EN_HYS
VALLEY
RAMP
EN_H
f
SW
IN
= 1μF, T
No load at COMP_
| I
EN_ rising
Each converter
(Note 4)
From DH1 to DH2 rising edges
Low, sinking 100mA, V
H i g h, sour ci ng 100m A, V
Low, sinking 100mA, V
High, sourcing 100mA, V
C
C
LOAD
LOAD
COMP_
Synchronous Buck Controller
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
= 10nF
= 10nF
|, V
COMP_
CONDITIONS
= 1.5V
Sinking
Sourcing
Sinking
Sourcing
BST_
CC
B S T _
CC
= 5.2V
- V
= 5.2V
- V
LX_
L X _
= 5V
= 5V
1.15
-250
MIN
460
200
45
86
2048
TYP
1.20
1.42
0.72
87.5
0.75
150
500
180
2.4
0.6
1.2
1.4
80
60
15
64
1
3
2
3
2
MAX
+250
1000
1.25
120
540
100
A
Switching
Degrees
UNITS
cycles
= +25°C.)
Steps
kHz
kHz
mV
μA
nA
ns
ns
%
Ω
Ω
V
V
V
V
V
A
A
3