MAX8686 Maxim Integrated Products, MAX8686 Datasheet - Page 4

• Manufacturer Part Number: MAX8686
• Description: DC-DC Converter Delivers Up To 25A Per Phase
• Manufacturer: Maxim Integrated Products

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Single/Multiphase, Step-Down,
DC-DC Converter Delivers Up to 25A Per Phase
ELECTRICAL CHARACTERISTICS (continued)
(V
C
Note 2: Specifications to T
4
OSCILLATOR (FREQ)
Source Current
Switching Frequency
Minimum On-Time
FREQ Discharge Resistance
Ramp Peak Voltage
SLOPE COMPENSATION (EN/SLOPE)
V
SLOPE Source Current
THERMAL PROTECTION
Thermal Shutdown
Thermal-Shutdown Hysteresis
POWER-OK (POK)
POK Threshold
POK Output Voltage Low
POK Leakage Current
OVERVOLTAGE OUTPUT PROTECTION (OVP)
Overvoltage Fault Trip Level
ENABLE (EN/SLOPE)
EN Logic-High
EN Logic-Low
BST
Internal PMOS On-Resistance
AVL
IN
SLOPE
_______________________________________________________________________________________
= V
= 0.22µF, C
INA
Range
PARAMETER
= 12V, VL = AVL, V
FREQ
= 270pF, T
A
= -40°C are guaranteed by design and not production tested.
REFIN
A
= +25°C, unless otherwise noted.) (Note 2)
= 1V, V
V
C
C
Rising temperature
V
V
V
V
V
regulation
FREQ
OUT
OUT
RS+
POK
REFIN
FREQ
FREQ
- V
rising
falling
= 5.5V
RS+
= 2V, T
= 180pF
= 580pF
= 3.3V, V
RS-
- V
= 0.8V, I
RS-
A
= -40°C to +85°C
RS+
= 1V, V
POK
rising, percentage of V
CONDITIONS
RS-
= 2mA
= 0V, V
EN/SLOPE
OUT
= 1.25V, V
in
CS+
= V
2.60
1.25
MIN
480
240
115
0.8
1.2
87
CS-
8
= 1V, R
V
0.001
TYP
AVL
500
300
100
160
120
10
10
30
90
87
25
1
8
ILIM
/2
= 122kΩ, C
MAX
2.85
2.50
520
360
200
125
1.2
0.7
50
12
93
1
VL
%V
UNITS
MHz
kHz
mV
= 1µF,
µA
µA
°C
°C
µA
ns
Ω
%
Ω
V
V
V
V
OUT