MAX8524 MAXIM [Maxim Integrated Products], MAX8524 Datasheet - Page 2

• Manufacturer Part Number: MAX8524
• Description: 2- to 8-Phase VRM 10/9.1 PWM Controllers with Precise Current Sharing and Fast Voltage Positioning
• Manufacturer: MAXIM [Maxim Integrated Products]

ABSOLUTE MAXIMUM RATINGS
REF, COMP, VID0 to VID5, OSC, CLKI,
RS+, RS-, ILIM to GND .................................-0.3V to V
PWM_ to GND...............................................-0.3V to V
EN, PWRGD, V
CS1_3-, CS2_4-, CS_+ to GND ....................-0.3V to V
Continuous Power Dissipation (T
2- to 8-Phase VRM 10/9.1 PWM Controllers
with Precise Current Sharing and Fast Voltage
Positioning
ELECTRICAL CHARACTERISTICS
(V
100kΩ to V
noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
GENERAL
V
V
V
V
V
Thermal Shutdown
REFERENCE
Reference Voltage
Reference Load Regulation
Reference Line Regulation
Reference UVLO Trip Level
SOFT-START
Soft-Start Step Size
Soft-Start Time per Step
VOLTAGE REGULATION
RS+ Input Bias Current
RS- Input Bias Current
V
V
COMP Output Current
GMV Amplifier Transconductance
GMV Amplifier Gain-Bandwidth
Product
CC
28-Pin QSOP (derate 10.8mW/°C above +70°C).........860mW
CC
CC
CC
CC
CC
OUT
OUT
CLKO to GND ..........................................-0.3V to V
_______________________________________________________________________________________
= 5V, VID_ = high, ILIM = 1.5V, EN = open, RS- = GND = 0V, CLKI = open, CLKO = open, R
Operating Range
UVLO Trip Level
Shutdown Supply Current
Standby Supply Current
Operating Supply Current
Initial Accuracy
Droop Accuracy
PARAMETER
CC
, PWM_ = open, COMP = 1V, CS_+ = 1.1V, CS1_3- = CS2_4- = RS+ = 1.1V, T
CC
to GND ........................................-0.3V to +6V
A
= +70°C)
Rising
Hysteresis
V
EN = 0V, V
RS+ = 1.2V (no switching), set VID code for 1.100V
Rising temperature, typical hysteresis = 15°C
I
100µA < I
4.5V < V
Rising edge, has 80mV typical hysteresis
Soft-start counts from EN rising (Note 1)
V
V
VID_ = 1.1V, T
VID_ = 1.1V
(CS_+) = 1.125V
(VO+) - (RS+) = 200mV
REF
CC
RS+
RS-
< 3.75V, VID_ = GND
= 200µA
= 0.2V
= 1.1V
CC
REF
CC
< 5.5V
< 500µA
= 5.5V
A
= +25°C
CC
CC
CC
CC
+ 0.3V
+ 0.3V
+ 0.3V
+ 0.3V
CONDITIONS
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
- 0.4%
A
-0.05
MIN
1.74
-0.4
-0.6
4.5
4.0
2.0
17
= 0°C to +85°C, unless otherwise
OSC
= 95.3kΩ to GND, PWRGD =
TYP
4.25
1.84
12.5
270
165
385
0.7
2.0
0.1
0.1
13
13
20
±5
2
5
+ 0.4%
+0.05
-0.05
MAX
+0.4
+0.6
1.95
5.5
4.5
2.0
20
20
23
3
1
1
UNITS
MHz
mV
mA
mA
mA
mV
mS
°C
µA
µA
µA
%
%
µs
%
%
V
V
V
V