FAN5069 Fairchild Semiconductor, FAN5069 Datasheet - Page 5

• Manufacturer Part Number: FAN5069
• Description: The FAN5069 combines a high efficiency Pulse-Width-Modulated PWM controller and a LDO (Low DropOut) linear regulator controller
• Manufacturer: Fairchild Semiconductor

FAN5069 Rev. 1.1.5
© 2005 Fairchild Semiconductor Corporation
Electrical Characteristics
Unless otherwise noted, V
The ‘•’ denotes that the specifications apply to the full ambient operating temperature range. See Notes 4 and 5.
Supply Current
Under-Voltage Lockout (UVLO)
Soft-Start
Oscillator
Reference
Error Amplifier
Gate Drive
V
UVLO(H) Rising V
Symbol
UVLO(L) Falling V
I
I
ΔV
V
LDOSTART
VCC(SD)
VCC(OP)
GBWP
V
R
R
F
V
R
R
SHUNT
I
S/R
SSOK
VCC
I
I
OSC
RAMP
HUP
HDN
REF
LUP
LDN
SS
FB
Slew Rate
V
V
V
V
V
Hysteresis
Current
LDO Start Threshold
PWM Protection Enable
Threshold
Frequency
Frequency Range
Ramp Amplitude
(Peak-to-Peak)
Minimum ON Time
Reference Voltage
(Measured at FB Pin)
Current Amplifier Reference
(at SW node)
DC Gain
Gain-BW Product
Output Voltage Swing
FB Pin Source Current
HDRV Pull-up Resistor
HDRV Pull-down Resistor
LDRV Pull-up Resistor
LDRV Pull-down Resistor
CC
CC
CC
CC
CC
Current (Quiescent)
Current (Shutdown)
Current (Operating)
Voltage
UVLO Threshold
CC
Parameter
CC
UVLO Threshold
UVLO Threshold
(6)
CC
= 5V, T
A
= 25°C, using circuit in Figure 1.
HDRV, LDRV Open
EN = 0V, V
EN = 5V, V
Q
Sinking 1mA to 100mA at V
Pin
R(T) = 56KΩ ± 1%
R(T) = Open
R(RAMP) = 330KΩ
F = 200kHz
T
T
10pF across COMP to GND
No Load
Sourcing
Sinking
Sourcing
Sinking
A
A
FET
= 0°C to 70°C
= -40°C to 85°C
= 20nC, F
Conditions
CC
CC
= 5.5V
= 5.0V,
5
SW
= 200kHz
CC
•
•
•
•
•
•
•
•
•
•
•
Min.
3.60
4.00
240
160
160
790
788
2.6
5.5
0.5
Typ.
3.75
4.25
0.50
200
300
200
200
800
800
160
3.2
2.2
1.2
0.4
1.8
1.8
1.8
1.2
10
10
80
25
8
1
Max.
4.50
4.00
400
360
240
600
810
812
3.8
5.9
4.0
3.0
3.0
3.0
2.0
15
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V/μS.
Unit
MHz
KHz
KHz
KHz
mA
mA
nS.
mV
mV
mV
μA
μA
dB
μA
V
V
V
V
V
V
V
Ω
Ω
Ω
Ω
V