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
(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 VOLTAGE vs. LOAD CURRENT
(VOUT = 1.30V)
1.32
EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.30V)
100
OUTPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 1.00V)
1.04
1.30
1.28
1.26
1.24
1.22
1.20 VIN = 12V
SKIP = VCC OR REF
1.18
0
10
20
30
40
LOAD CURRENT (A)
1.02
90
1.00
80
0.98
0.96
70
VIN = 20V
0.94
60
VIN = 7V
VIN = 12V
0.92
SKIP = REF
0.90 VIN = 12V
SKIP = VCC
SKIP = VCC OR REF
50
0.88
0.01
1
10
100
0
10
20
30
40
LOAD CURRENT (A)
LOAD CURRENT (A)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.00V)
100
OUTPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 0.80V)
0.84
EFFICIENCY vs. LOAD CURRENT
(VOUT = 0.80V)
100
90
0.82
90
VIN = 7V
80
0.80
80
70
VIN = 20V
60
VIN = 7V
50
0.01
1
VIN = 12V
SKIP = REF
SKIP = VCC
10
100
LOAD CURRENT (A)
SWITCHING FREQUENCY
vs. LOAD CURRENT
400
300
FORCED-PWM (SKIP = VCC)
200
SKIP MODE (SKIP = REF)
100
VOUT = 1V (NO LOAD)
0
0
10
20
30
40
LOAD CURRENT (A)
0.78
0.76
VIN = 12V
SKIP = REF or GND
0.74
0
5
10
15
20
LOAD CURRENT (A)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (FORCED-PWM MODE)
150
SKIP = VCC
120
ICC + IDD
90
60
30
0
0
IIN
5 10 15 20 25 30
INPUT VOLTAGE (V)
70
VIN = 20V
60
50
0.01
SKIP = REF
SKIP = GND
1
10
100
LOAD CURRENT (A)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (PULSE SKIPPING)
3.0
SKIP = REF
2.5
2.0
1.5
ICC + IDD
1.0
0.5
0
0
IIN
5 10 15 20 25 30
INPUT VOLTAGE (V)
_______________________________________________________________________________________ 9
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