AME8818_12 Datasheet, PDF (12/25 Pages) Analog Microelectronics – Low Dropout 300mA CMOS Regulator

AME
AME8818
Low Dropout
300mA CMOS Regulator
n Electrical Specifications
V_IN = V_OUT(NOM) + 1V or V_IN = 2.5V, if V_OUT(NOM) <= 2.0V, I_OUT = 1mA, V_EN = V_IN and C_OUT = C_IN = 1µF, Typical values at
T_A = 25^oC, unless otherwise noted.
Parameter
Symbol
Test Conditions
Min Typ Max Units
Input Voltage
ADJ Input Bias Current
ADJ Reference Voltage
Output Voltage Accuracy
Output Voltage Range
Output Current
Quiescent Current
Dropout Voltage
Output Voltage Line
Regulation
[(∆VOUT / ∆VIN)x100%] /
V_OUT
Output Voltage Load
Regulation
[(∆VOUT / V OUT) x 100%]
/∆I_OUT
Output Current Limit
Shutdown Current
Power Supply Ripple
Rejection
V_IN
(Note1)
5.5 V
IADJ
VIN=5V, VADJ=0.980
1
µA
V_REF
0.965 0.980 0.995 V
V _OUT,ACC
V _OUT
I_OUT
I_Q
VIN = 5.5V, IOUT = 1mA
V_{O U T}
2.0V
-2
2%
1.2
4.5 V
300
mA
70 100 µA
(Note2)
V_DROP
IOUT = 300mA
2.0V V_OUT
2.6V VOUT
2.5V
3.0V
370 500
mV
280 400
V_OUT 3.1V
230 330
VIN(MIN) VIN VIN(MAX)
1.2V VOUT<2.5V -0.4 0.1 0.4
REG_LINE
V_IN(MIN) V_IN V_IN(MAX)
2.5 V_OUT<3.3V
-0.2 0.03 0.2 %/V
V_OUT+0.3V V_IN V_IN(MAX) 3.3V V_OUT <4.5V -0.1 0.01 0.1
V_OUT 3.3V
-0.003
0.002
REG_LOAD
1mA I_OUT 300mA
2.5V V_OUT<3.3V -0.005
0.004 %/mA
1.2V V_OUT<2.5V -0.015
0.01
ILIM
I_SHDN
VOUT = 0.8 x VOUT(NOM)
V_EN = 0V, V_IN(MIN) V_IN 5.5V
330 500
5
mA
10 µA
PSRR
f = 1KHz, I_OUT = 100mA, Cout=1µF(Note3)
60
dB
Enable High (enabled)
Enable Low (shutdown)
Enable Pin Current (enabled)
Thermal Shutdown
Temperature
VEN(HI)
V_EN(LO)
IEN
T_SHDN
TRS
VIN(MIN) VIN 5.5V
V_IN(MIN) V_IN 5.5V
VEN = VIN
Shutdown, temperature increasing
Restore, temperature decreasing
1.4
VI N
V
0
0.4 V
0.1
1
µA
150
O_C
130
Note 1: V_IN(MIN)=V_OUT+V_DROP or V_IN(MIN)=2.5V, whichever is greater.
Note 2: For V_OUT below 2.0V, Dropout Voltage is the input_(MIN) to output differential.
Note 3: For V_OUT below 1.5V, the input_(MIN) is 3.0V.
12
Rev.D.06