FAN2013_08 Datasheet, PDF (4/9 Pages) Fairchild Semiconductor – 2A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator

Electrical Characteristics
VIN = 4.5V to 5.5V, VOUT = 1.2V, IOUT = 200mA, CIN = 10µF, COUT = 40µF, L = 2.2µH, TA = -40°C to +85°C, unless
otherwise noted. Typical values are at TA = 25°C.
Symbol
Parameter
Conditions
Min.
VIN
Input Voltage
4.5
IQ
Quiescent Current
IOUT = 0mA
VUVLO UVLO Threshold
VIN Rising
3.4
Hysteresis
RON_PMOS PMOS On Resistance
VIN = VGS = 5V
RON_NMOS NMOS On Resistance
VIN = VGS = 5V
ILIMIT P-Channel Current Limit
4.5V < VIN < 5.5V
2.8
TOVP
Rising Temperature
Over-Temperature Protection
Hysteresis
fSW
RLINE
RLOAD
VOUT
ILEAK
Switching Frequency
Line Regulation
Load Regulation
Output Voltage During Load
Transition⁽⁴⁾
Reverse Leakage Current
into Pin SW
VIN = 4.5 to 5.5V, IOUT = 100mA
0mA ≤ IOUT ≤ 2000mA
IOUT from 1500mA to 100mA,
COUT = 60µF
IOUT from 100mA to 1500mA,
COUT = 60µF
1000
-5
VIN = Open, EN = GND, VSW = 5.5V
VREF Reference Voltage
VIN = 4.5 to 5.5V, 0mA ≤ IOUT
-2
VOUT Output Voltage Accuracy
≤ 2000mA, TA= 0°C to +85°C
VIN = 4.5 to 5.5V, 0mA ≤ IOUT
-3
≤ 2000mA, TA= -40°C to +85°C
VPG
Power Good Output
Threshold and Hysteresis
FB Voltage Rising
Hysteresis
tPG
VPG_LOW
VOVP
Power Good Output Delay
Power Good Voltage Low
Over-Voltage Protection
Threshold and Hysteresis
Isink=6mA, Open-Drain Output
FB Voltage Rising
Hysteresis
Notes:
4. Please refer to the load transient response test waveform shown in Figure 3.
Typ.
10
3.7
150
90
90
3.5
150
20
1300
0.16
0.2
0.1
0.8
0.85 xVOUT
2
100
1.07 xVOUT
2
Max.
5.5
16
4.0
4.2
1600
0.6
5
1.0
2
3
0.4
Units
V
mA
V
mV
MΩ
mΩ
A
°C
°C
kHz
%/V
%
%
%
µA
V
%
%
%
V
µs
V
V
%
1500
100
0
ss
tr = 100ns
tf = 100ns
ss
0.6
ss ss
4.6
Figure 3. Load Transient Response Test Waveform
Time (ms)
© 2006 Fairchild Semiconductor Corporation
FAN2013 Rev. 1.0.3
4
www.fairchildsemi.com