MAX8760 데이터 시트보기 (PDF) - Maxim Integrated
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MAX8760
Maxim Integrated
MAX8760 Datasheet PDF : 39 Pages
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Dual-Phase, Quick-PWM Controller for AMD
Mobile Turion 64 CPU Core Power Supplies
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 12V, VCC = VDD = 5V, SHDN = SKIP = VCC, D0–D5 set for 1.5V (SUS = GND), S0 and S1 set for 1V
(SUS = VCC), OFS = GND, TA = +25°C, unless otherwise specified.)
OUTPUT OFFSET VOLTAGE
vs. OFS VOLTAGE
150
100
50
0
-50
REFERENCE VOLTAGE
DISTRIBUTION
50
SAMPLE SIZE = 100
40
30
20
CURRENT-BALANCE OFFSET
VOLTAGE DISTRIBUTION
50
SAMPLE SIZE = 100
40
30
20
-100
-150
0
UNDEFINED
REGION
0.5
1.0
1.5
2.0
OFS VOLTAGE (V)
10
0
1.990
1.995 2.000 2.005
REFERENCE VOLTAGE (V)
2.010
10
0
-2.50
-1.25
0
1.25
2.50
OFFSET VOLTAGE (mV)
CURRENT-LIMIT THRESHOLD
DISTRIBUTION
50
VILIM = 0.20V
SAMPLE SIZE = 100
40
30
20
10
0
9.0
9.5
10.0
10.5
11.0
CURRENT LIMIT (mV)
VOLTAGE-POSITIONING AMPLIFIER
GAIN AND PHASE vs. FREQUENCY
60
180 MAX8760 toc14
50
144
40
108
30
72
GAIN
20
36
10
0
0
-36
-10
-72
-20
PHASE
-108
-30
-144
-40
0.1
1
10 100 1k
FREQUENCY (Hz)
-180
10k
VPS AMPLIFIER OFFSET VOLTAGE
vs. COMMON-MODE VOLTAGE
180
160
140
120
100
80
60
40
VPS AMPLIFIER
20
DISABLED
0
0
1
2
3
4
5
COMMON-MODE VOLTAGE (V)
INDUCTOR CURRENT DIFFERENCE
vs. LOAD CURRENT
1.0
0.8
SKIP = REF
0.6
0.4
SKIP = VCC
0.2
0
0
RSENSE = 1mΩ
10
20 30
40
50
LOAD CURRENT (A)
10 ______________________________________________________________________________________
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