MAX8524 MAXIM [Maxim Integrated Products], MAX8524 Datasheet - Page 8

• 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]

2- to 8-Phase VRM 10/9.1 PWM Controllers
with Precise Current Sharing and Fast Voltage
Positioning
(V
8
IN
_______________________________________________________________________________________
= 12V, V
RECOVERY WAVEFORMS
SHORT-CIRCUIT AND
OUT
2.002
2.001
2.000
1ms
5
4
3
2
1
0
= 1.2V, I
REFERENCE VOLTAGE LOAD REGULATION
-40
0
CLOCK FREQUENCY vs. TEMPERATURE
R
OSC
-20
= 43.2kΩ
REFERENCE LOAD CURRENT (µA)
100
OUT_MAX
0
MAX8524 toc09
TEMPERATURE (°C)
R
20
OSC
200
= 294kΩ
40
PHASE 1
INDUCTOR
CURRENT
10A/div
POWER-
GOOD
OUTPUT
OUTPUT
VOLTAGE
0.5V/div
= 80A, f
300
R
60
OSC
= 105kΩ
80
SW
400
100
1.400
1.200
1.000
0.800
0.600
0.400
0.200
= 250kHz, T
Typical Operating Characteristics (continued)
120
0
500
0
CURRENT-SENSE THRESHOLD vs. V
10
20
A
OUTPUT CURRENT (A)
30
= +25°C, unless otherwise noted.)
40
50
60
70
80
4900
4600
4300
4000
3700
3400
3100
2800
2500
2200
1900
1600
1300
1000
90
700
400
ILIM
10
9
8
7
6
5
4
3
2
1
0
100
-40
10
-20
CLOCK FREQUENCY vs. R
CLKO RISE AND FALL TIME
2.010
2.005
2.000
1.995
1.990
0
vs. TEMPERATURE
R
TEMPERATURE (°C)
OSC
20
-40
RESISTOR (kΩ)
40
100
-20
RISE
FALL
60
REFERENCE VOLTAGE
0
vs. TEMPERATURE
TEMPERATURE (°C)
80
20
OSC
MAX8524 toc15
100
40
120
1000
60
10
9
8
7
6
5
4
3
2
1
0
80
100
120