AME
Low Dropout
300mA CMOS Regulator
AME8818
n Electrical Specifications
VIN = VOUT(NOM) + 1V or VIN = 2.5V, if VOUT(NOM) <= 2.0V, IOUT = 1mA, VEN = VIN and COUT = CIN = 1mF, Typical values at
TA = 25oC, unless otherwise noted.
Test Conditions
Units
Parameter
Symbol
Min Typ Max
Input Voltage
(Note1)
-2
5.5
2
V
%
V
IN
OUT,ACC
Output Voltage Accuracy
Output Voltage Range
Output Current
V
1.2
4.5
V
V
OUT
300
mA
I
OUT
Quiescent Current
VIN = 5.5V, IOUT = 1mA
70
(Note2)
370
100 mA
I
Q
V
OUT ≦ 2.0V
2.0V < VOUT ≦ 2.5V
500
mV
400
VDROP
Dropout Voltage
IOUT = 300mA
≦
≦
3.0V
2.6V
VOUT
OUT ≧ 3.1V
1.2V≦VOUT<2.5V
280
V
230
330
Output Voltage Line
Regulation
V
IN(min)≦VIN≦VIN(max)
-0.4
-0.2
0.1
0.4
≦ ≦
VIN(min) VIN VIN(max)
≦
REGLINE
2.5 VOUT<3.3V
0.03
0.01
0.2 %/V
0.1
[(DVOUT / DVIN)x100%] /
VOUT+0.3V≦VIN≦VIN(max) 3.3V≦VOUT <4.5V
OUT≧3.3V
-0.1
VOUT
Output Voltage Load
Regulation
V
-0.003
-0.005
-0.015
330
0.002
≦
≦
≦
1mA IOUT 300mA
2.5V VOUT<3.3V
%/mA
REGLOAD
0.004
0.01
[(DVOUT / VOUT) x 100%]
1.2V≦VOUT<2.5V
/DIOUT
Output Current Limit
Shutdown Current
ILIM
VOUT = 0.8 x VOUT(NOM)
500
5
mA
ISHDN
VEN = 0V, VIN(min) ≦ VIN ≦ 5.5V
10
mA
Power Supply Ripple
Rejection
PSRR
f = 1KHz, IOUT = 100mA, Cout=1µF(Note3)
60
dB
Enable High (enabled)
VEN(HI)
VEN(LO)
IEN
VIN(min) ≦ VIN ≦ 5.5V
VIN(min) ≦ VIN ≦ 5.5V
1.4
0
VIN
0.4
1
V
V
Enable Low (shutdown)
Enable Pin Current (enabled)
VEN = VIN
0.1
150
130
mA
TSHDN
TRS
Shutdown, temperature increasing
Restore, temperature decreasing
Thermal Shutdown
Temperature
OC
Note 1: VIN(MIN)=VOUT+VDROP or VIN(min)=2.5V, whichever is greater.
Note 2: For VOUT below 2.0V, Dropout Voltage is the input to output differential.
Note 3: For VOUT below 1.5V, the minimun input. Voltage is 3.0V.
Rev.A.01
7
AMETHERM [ AMETHERM CIRCUIT PROTECTION THERMISTORS ]
