MAX8543 MAXIM [Maxim Integrated Products], MAX8543 Datasheet - Page 4

• Manufacturer Part Number: MAX8543
• Description: Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
• Manufacturer: MAXIM [Maxim Integrated Products]

Step-Down Controllers with Prebias Startup,
Lossless Sensing, Synchronization, and OVP
ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
4
POK
Power-OK Threshold
POK Output Voltage, Low
POK Leakage Current, High
OVERVOLTAGE PROTECTION (OVP)
Output Overvoltage Fault-Trip level
MODE CONTROL
MODE Logic-Level Low
MODE Logic-Level High
MODE Input Current
SHUTDOWN CONTROL
EN Logic-Level Low
EN Logic-Level High
EN Input Current
Operating Input Voltage Range
Quiescent Supply Current
Shutdown Supply Current
VL Undervoltage-Lockout Trip Level
Output Voltage Adjust Range (V
VL Output Voltage
VL Output Current
VOLTAGE REFERENCE
SS Shutdown Resistance
SS Soft-Start Current
ERROR AMPLIFIER
FB Regulation Voltage
Transconductance
COMP Shutdown Resistance
FB Input Leakage Current
FB Input Common-Mode Range
IN
IN
_______________________________________________________________________________________
= 13.2V, V
= 13.2V, V
PARAMETER
PARAMETER
BST
BST
- V
- V
LX
LX
= 5V, T
= 5V, T
A
A
OUT
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= -40°C to +85°C, unless otherwise noted.) (Note 2)
)
V
typical hysteresis is 3%
V
V
Rising edge compared to regulation set point;
triggers after one or two clock cycles
3V ≤ V
3V ≤ V
V
MODE = VL
3V ≤ V
3V ≤ V
V
V
VL connected to IN for V
V
EN = GND, MODE = GND, IN not connected to VL
EN = GND, VL = IN, MODE = GND
V
(Note 1)
5.5V < V
From SS to GND, V
V
From COMP to GND, V
V
FB
FB
POK
MODE
EN
EN
FB
VL
REF
FB
rising, typical hysteresis is 80mV
rising, percent of V
= 0.6V, I
= 0 or 5.5V
= 13.2V
= 0.9V, no switching
= 0.9V
= 0.625V
= 5.5V
VL
VL
VL
VL
= 0V
IN
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
< 13.2V, 1mA < I
POK
= 2mA
CONDITIONS
CONDITIONS
EN
= 0V
EN
OUT
IN
= 0V
< 5.5V
,
VL
< 75mA
0.788
+110
2.52
A
MIN
MIN
-0.1
1.8
3.0
0.8
4.5
88
14
70
-1
-1
2
= +25°C.)
0.001
+115
TYP
1.5
91
25
5
0.808
+120
MAX
MAX
+0.9
13.2
2.88
0.45
200
100
160
100
100
0.4
5.5
+1
+4
94
10
10
20
75
34
1
6
3
UNITS
UNITS
mV
mA
mA
µA
µA
µA
µA
µA
µS
nA
%
%
Ω
Ω
V
V
V
V
V
V
V
V
V
V