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FAN5078MPX データシート(PDF) 7 Page - Fairchild Semiconductor

部品番号 FAN5078MPX
部品情報  DDR/ACPI Regulator Combo
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メーカー  FAIRCHILD [Fairchild Semiconductor]
ホームページ  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5078MPX データシート(HTML) 7 Page - Fairchild Semiconductor

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© 2006 Fairchild Semiconductor Corporation
7
www.fairchildsemi.com
FAN5078 Rev. 1.0.0 • 05/11/06
Electrical Specifications
Recommended operating conditions; component values per Figure 1, unless otherwise noted.
Parameter
Conditions
Min.
Typ.
Max.
Units
Power Supplies
VCC Current:
S0
LDRV, HDRV Open, FB forced above
regulation point, I(VTT) = 0, EN=1, S3#I=1
15
24
mA
S3
EN=1, S3#I = LOW, I(3.3) < 10mA
15
24
mA
S5
EN=0, I(3.3) = 0
2
4
mA
Rising VCC
4.0
4.2
4.4
V
Falling
3.9
4,1
4.3
V
VCC UVLO Threshold
Hysteresis
0.15
V
Rising
4.3
4.4
4.6
V
Falling
3.9
4.1
4.2
V
5V MAIN UVLO Threshold
Hysteresis
0.30
V
5V MAIN Input Resistance
to GND
35
62
KΩ
Oscillator
Frequency
255
300
345
KHz
Ramp Amplitude, pk–pk
(1)
1.8
V
Ramp Offset
0.5
V
Reference and Soft Start
Internal Reference Voltage
0.891
0.900
0.909
V
ILIM Reference Voltage
-2
μA > IILIM > -18μA
0.882
0.900
0.918
V
Initial ramp after power-up
4.2
Average Soft Start Current
(ISS)
During PWM / LDO soft start
45
µA
SS Discharge Resistance
EN = 0
150
SS Complete Threshold
1.5
V
SS Complete Hysteresis
50
mV
PWM Converter
Load Regulation
IOUT from 0 to 15A
-2
+2
%
FB Bias Current
-1.8
-1.3
-0.8
µA
Under-Voltage Shutdown
as % of set point, 2
μS noise filter
65
75
80
%
Over-Voltage Threshold
as % of set point
110
115
120
%
ISNS Over-Current Threshold
RILIM= 56KΩ
-195
-170
-145
µA
VDDQ IN Discharge
Resistance
EN = 0
20
55
COMP Source Current
VCOMP = 2.5V
650
µA
COMP Sink Current
VCOMP = 2.5V
100
µA
Error Amp GBW Product
(1)
5.5
MHz
Error Amp DC Gain
(1)
82
dB


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