MAX15109 Datasheet, PDF (3/19 Pages) Maxim Integrated Products – High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator

High-Efficiency, 8A, Current-Mode Synchronous
Step-Down Switching Regulator with VID Control
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 5V, CSS = 4.7nF, TA = TJ = -40NC to +85NC. Typical values are at TA = +25NC, unless otherwise noted.) (Note 4)
PARAMETER
LX Leakage Current
RMS LX Output Current
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
Minimum Controllable On-Time
ENABLE
EN Input High Threshold Voltage
EN Input Low Threshold Voltage
EN Input Leakage Current
VID CONTROL INPUTS
VID_ High Threshold Voltage
VID_ Low Threshold Voltage
VID1 Input Leakage Current
VID0 Input Leakage Current
SOFT-START, PREBIAS
Soft-Start Current
SS Discharge Resistance
SS Prebias Mode Stop Voltage
HICCUP
Number of Consecutive
Current-Limit Events to Hiccup
SYMBOL
CONDITIONS
VEN = 0V
fSW
DMAX
VEN rising
VEN falling
VEN = 5V
VVID_ rising
VVID_ falling
VVID1 = 5V
VVID0 = 5V
ISS VSS = 0.45V, sourcing
RSS ISS = 10mA, sinking
SS rising
MIN TYP MAX UNITS
10
FA
8
A
850 1000 1150 kHz
94
%
100
ns
1.3
V
0.4
V
1
FA
0.67
V
0.33
V
30
FA
1
FA
10
FA
8.5
I
0.58
V
8
Events
Timeout
POWER-GOOD OUTPUT
PGOOD Threshold
PGOOD VOL
PGOOD Leakage
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
PGT
FB rising
VID0
0
0
1
1
FB falling
IPGOOD = 5mA, VFB = 0.5V
VPGOOD = 5V, VFB = 0.68V
VID1
0
1
0
1
Temperature falling
1024
Clock
Cycles
824 853 884
705 729 755
mV
654 677 701
580 602 624
559 578 600
mV
22
100
mV
1
FA
+160
NC
25
NC
Note 4: Specifications are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by
design and characterization.
_______________________________________________________________________________________   3