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FAN2011 Datasheet(PDF) 4 Page - Fairchild Semiconductor

Part No. FAN2011
Description  1.5A Low Voltage Current Mode Synchronous PWM Buck Regulator
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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FAN2011 Datasheet(HTML) 4 Page - Fairchild Semiconductor

 
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FAN2011/FAN2012 Rev. 1.0.4
Electrical Characteristics
Notes:
4. Load transient response test waveform.
Additional Electrical Characteristics for FAN2012
Figure 3. Load Transient Response Test Waveform
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
Conditions
Min.
Typ.
Max.
Units
Input Voltage
4.5
5.5
V
Quiescent Current
IOUT = 0mA
7
10
mA
UVLO Threshold
VIN Rising
3.4
3.7
4
V
Hysteresis
150
mV
PMOS On Resistance
VIN = VGS = 5V
150
290
m
NMOS On Resistance
VIN = VGS = 5V
150
290
m
P-channel Current Limit
4.5V < VIN < 5.5V
2200
2600
3500
mA
Over-Temperature Protection
Rising Temperature
150
°C
Hysteresis
20
°C
Switching Frequency
1000
1300
1600
kHz
Line Regulation
VIN = 4.5 to 5.5V, IOUT = 100mA
0.16
% / V
Load Regulation
0mA
≤ I
OUT ≤ 1500mA
0.2
0.5
%
Output Voltage During Load Transition(4)
IOUT from 700mA to 100mA
5
%
Output Voltage During Load Transition(4)
IOUT from 100mA to 700mA
-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
0mA
≤ I
OUT
1500mA
FAN2011
FAN2012
-2
2
%
FAN2011I
FAN2012I
-40°C to +85°C
-3
3
%
TA = 0°C to +85°C, VIN = 4.5 to 5.5V. Typical values are at TA = 25°C.
Parameter
Conditions
Min.
Typ.
Max.
Units
Shutdown Mode Supply Current
VEN = 0V
0.1
1
µA
EN Bias Current
0.1
µA
EN High Voltage
1.3
V
EN Low Voltage
0.4
V
0.6
Time (mSec)
ss
0
4.6
100
700
tr = 67nS
tf = 67nS


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