FAN5069(2005) 查看數據表（PDF） - Fairchild Semiconductor
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FAN5069 Datasheet PDF : 20 Pages
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Electrical Characteristics
Unless
The ‘•’
otherwise noted,
denotes that the
VCC = 5V, TA = 25°C, using circuit in Figure 1.
specifications apply to the full ambient operating
temperature
range.
See
Notes
4
and
5.
Symbol
Parameter
Conditions
Supply Current
IVCC VCC Current (Quiescent)
HDRV, LDRV Open
•
IVCC(SD) VCC Current (Shutdown)
EN = 0V, VCC = 5.5V
•
IVCC(OP)
VSHUNT
VCC Current (Operating)
VCC Voltage (Note 6)
EN = 5V, VCC = 5.0V
Sinking 20mA to 100mA at VCC Pin
UVLO
UVLO(H) Rising VCC UVLO Threshold
•
UVLO(L) Falling VCC UVLO Threshold
•
VCC UVLO Threshold Hystere-
sis
Soft-Start
ISS
VLDOSTART
VSSOK
Current
LDO Start threshold
PWM Protection Enable
threshold
Oscillator
FOSC Frequency
ΔVRAMP
Frequency Range
Ramp Amplitude (Peak-to-
Peak)
R(T) = 56KΩ ± 1%
R(T) = Open
R(RAMP) = 330KΩ
Minimum ON Time
F = 200kHz
Reference
VREF Reference Voltage (Measured TA = 0°C to 70°C
•
at FB Pin)
TA = -40°C to 85°C
•
Current Amplifier Reference
(at SW node)
Error Amplifier
DC Gain
GBWP Gain-BW Product
S/R Slew Rate
10pF across COMP to GND
Output Voltage Swing
No Load
•
IFB
FB Pin Source Current
Gate Drive
RHUP HDRV Pull-up Resistor
Sourcing
•
RHDN HDRV Pull-down Resistor
Sinking
•
RLUP LDRV Pull-up Resistor
Sourcing
•
RLDN LDRV Pull-down Resistor
Sinking
•
Min.
2.6
5.5
4.0
3.6
240
160
160
790
788
0.5
Typ.
3.2
200
10
4.25
3.75
0.5
10
2.2
1.2
300
200
0.4
200
800
800
160
80
25
8
1
1.8
1.8
1.8
1.2
Max. Unit
3.8
mA
400
μA
15
mA
5.9
V
4.5
V
4.0
V
V
μA
V
V
360
KHz
240
KHz
600
KHz
V
nS.
810
mV
812
mV
mV
dB
MHz
V/μS.
4.0
V
μA
3
Ω
3
Ω
3
Ω
2
Ω
FAN5069 Rev. 1.1.0
5
www.fairchildsemi.com
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