MP20046 – FAST TRANSIENT RESPONSE, 2A, LOW DROPOUT VOLTAGE REGULATOR
ELECTRICAL CHARACTERISTICS
VIN=(VOUT (TYP) +1V) or +2.7V, IOUT=1mA, VEN=0V, COUT=47µF, TJ =-40°C to +125°C, unless otherwise
noted. Typical values are at TA =+25°C.
Parameter
Symbol Condition
Min
Typ
Max
Units
1.5V
1.8V
2.5V
3.3V
2.7V < VIN < 5.5V
1.485
1.782
2.475
3.267
1.5
1.8
2.5
3.3
1.515
1.818
2.525
3.333
2.8V < VIN < 5.5V
3.5V < VIN < 5.5V
4.3V < VIN < 5.5V
IOUT = 1mA to 2A
Output Voltage
VOUT
V
IGND
Ground Pin Current
Line Regulation(5)
75
300
µA
∆VOUT%/
VOUT
VOUT + 1V < VIN ≤ 5.5V
0.01
0.1
%/V
Load Regulation(6)
ꢀVOUT
IOUT = 1mA to 2A
10Hz to 30kHz,
4
mV
Output Voltage Noise
17
µVRMS
VOUT=3.3V, COUT=100µF
IOUT=2A,,VOUT= 1.4V
IOUT=2A, VOUT= 1.7V
IOUT=2A, VOUT= 2.4V
300
300
280
210
3.3
1
470
470
420
400
4.5
Dropout Voltage(7)
VDO
mV
I
OUT=2A,,VOUT= 3.2V
VOUT=0V
=V
Current Limit
Standby Current
ILIM
ISTBY
A
µA
10
EN
IN
Input High Threshold
Input Low Threshold
VIH
VIL
1.5
V
V
EN
EN
0.4
Thermal Shutdown Temperature
TSD
+150
70
°C
F=100Hz, COUT=100µF,
OUT=2A
IOUT(PG)=300µA, V(PG) ≤ 0.8
V
VOUT decreasing
Measured at VOUT
IOUT(PG)=1mA
Output Voltage AC PSRR
PSRR
dB
V
I
Minimum Input Voltage
for Valid PG
1.6
86
Trip Threshold Voltage
Hysteresis Voltage
78
%VOUT
%VOUT
V
PG
1.15
0.15
Output Low Voltage
Leakage Current
0.4
1
V(PG) = 5.5V
µA
=V
=0V
-1
-1
1
1
µA
µA
EN
EN
IN
Input Current
EN
0
Notes:
VOUT
− VOUT
⎡
V
IN(MIN)
⎣
⎡
⎤
⎤
⎦
V
IN(MAX)
⎣
⎦
5) Line Regulation=
×100(%/ V)
⎡
⎣
⎤
⎦
V
− V
)
× VOUT(NOM)
IN(MIN)
IN MAX
(
6) Load Regulation=
V
− V
⎡
⎤
⎡
⎤
OUT IOUT(MIN)
⎦
OUT IOUT(MAX)
⎣
⎦
⎣
7) Ramp down input voltage till output voltage equals VOUT(NOM) – 0.1V
MP20046 Rev. 1.1
10/13/2010
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