MAX15039_11 Datasheet, PDF (4/19 Pages) Maxim Integrated Products – 6A, 2MHz Step-Down Regulator with Integrated Switches Open-Drain, Power-Good Output

6A, 2MHz Step-Down Regulator
with Integrated Switches
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = V_EN = 5V, C_VDD = 2.2μF, T_A = T_J = -40°C to +85°C, typical values are at T_A = +25°C, circuit of Figure 1, unless otherwise
noted.) (Note 3)
PARAMETER
LX Switching Frequency
Switching Frequency Range
LX Minimum Off-Time
LX Maximum Duty Cycle
LX Minimum Duty Cycle
Average Short-Circuit IN Supply
Current
RMS LX Output Current
ENABLE
EN Input Logic-Low Threshold
EN Input Logic-High Threshold
EN Input Current
MODE
MODE Input-Logic Threshold
MODE Input-Logic Hysteresis
MODE Input Bias Current
SS
SS Current
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
POWER GOOD (PWRGD)
Power-Good Threshold Voltage
V_IN = 2.9V to 5.5V
CONDITIONS
R_FREQ = 49.9kΩ
R_FREQ = 23.6kΩ
R_FREQ = 49.9kΩ
R_FREQ = 49.9kΩ
OUT connected to GND, V_IN = 5V
EN falling
EN rising
V_EN = 0 or 5V, V_IN = 5V
Logic-low, falling
Logic V_DD/2 or open, rising
Logic-high, rising
MODE falling
MODE = GND
MODE = V_DD
V_SS = 0.45V, V_REFIN = 0.6V, sourcing
Rising
V_FB falling, V_REFIN = 0.6V
V_FB rising, V_REFIN = 0.6V
Power-Good Edge Deglitch
V_FB rising or falling
PWRGD Output-Voltage Low
PWRGD Leakage Current
HICCUP OVERCURRENT LIMIT
I_PWRGD = 4mA
V_IN = V_PWRGD = 5V, V_FB = 0.7V, V_REFIN = 0.6V
Current-Limit Startup Blanking
MIN TYP MAX UNITS
0.9
1
1.1
MHz
1.8
2
2.2
500
2000 kHz
78
ns
92
95
%
5
15
%
0.35
A
6
A
0.9
V
1.5
V
0.01
μA
26
50
%V_DD
74
5
%V_DD
-5
μA
5
6.7
8
9.3
μA
165
°C
25
°C
88
90
92
%
92.5
V_REFIN
48
Clock
cycles
0.03 0.1
V
0.01
μA
112
Clock
cycles
Autoretry Restart Time
896
Clock
cycles
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