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| FAN2011 Datasheet, PDF (4/10 Pages) Fairchild Semiconductor – 1.5A Low Voltage Current Mode Synchronous PWM Buck Regulator | |||
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Electrical Characteristics
VIN = 4.5V to 5.5V, VOUT = 1.2V, IOUT = 200mA, CIN = 10µF, COUT = 4 x 10µF, L = 3.3µH, TA = 0°C to
+85°C, unless otherwise noted. Typical values are at TA = 25°C.
Parameter
Input Voltage
Quiescent Current
UVLO Threshold
PMOS On Resistance
NMOS On Resistance
P-channel Current Limit
Over-Temperature Protection
Switching Frequency
Line Regulation
Load Regulation
Conditions
IOUT = 0mA
VIN rising
Hysteresis
VIN = VGS = 5V
VIN = VGS = 5V
4.5V < VIN < 5.5V
Rising temperature
Hysteresis
VIN = 4.5 to 5.5V, IOUT = 100mA
0mA ⤠IOUT ⤠1500mA
Min.
4.5
3.5
2200
1000
Typ.
7
3.7
150
150
150
2600
150
20
1300
0.16
0.2
Max.
5.5
10
3.9
290
290
3500
1600
0.5
Units
V
mA
V
mV
mâ¦
mâ¦
mA
°C
°C
kHz
%/V
%
Output Voltage During Load Transition IOUT from 700mA to 100mA
(Note 5)
5
%
Output Voltage During Load Transition IOUT from 100mA to 700mA
-5
%
(Note 5)
Reverse Leakage Current Into Pin SW VIN = Open, EN = GND, Vsw = 5.5V
0.1
1
µA
Reference Voltage, VREF
0.8
V
Output Voltage Accuracy
VIN = 4.5 to 5.5V
FAN2011
-2
0mA ⤠IOUT ⤠1500mA
FAN2012
2
%
FAN2011I
-3
3
%
FAN2012I
-40°C to +85°C
Additional Electrical Characteristics for FAN2012
TA = 0°C to +85°C, VIN = 4.5 to 5.5V. Typical values are at TA = 25°C.
Parameter
Shutdown Mode Supply Current
EN Bias Current
EN High Voltage
EN Low Voltage
Conditions
VEN = 0V
Min.
1.3
Notes:
5. Load transient response test waveform.
Typ.
0.1
Max.
1
0.1
0.4
Units
µA
µA
V
V
700
100
0
tr = 67nS
tf = 67nS
ss
0.6
4.6
Figure 3. Load Transient Response Test Waveform
Time (mSec)
FAN2011/FAN2012 Rev. 1.0.2
4
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