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| AME8821 Datasheet, PDF (7/15 Pages) Analog Microelectronics – 250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application | |||
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AME, Inc.
AME8821
250mA Hi-PSRR, Low-Quiescent LDO
with In-Rush Current Control
For USB Application
n Electrical Specifications (contd.)
Parameter
Symbol
Dropout Voltage @ VOUT =
VOUT(nom) - 2%VOUT(nom)
VDROP
Thermal Shutdown Temerature TSHDN
Test Condition
Min
VOUT(nom) = 1.8V
IOUT = 250mA
VOUT(nom) = 2.5V
IOUT = 250mA
VOUT(nom) = 2.85V
IOUT = 250mA
VOUT(nom) = 3V
IOUT = 250mA
VOUT(nom) = 3.3V
IOUT = 250mA
TA = 25oC
TJ = -40oC to 125oC
TA = 25oC
TJ = -40oC to 125oC
TA = 25oC
TJ = -40oC to 125oC
TA = 25oC
TJ = -40oC to 125oC
TA = 25oC
TJ = -40oC to 125oC
Thermal shutdown increasing
Temerature Hysterisis
THYS
Output Voltage Temperature
Coefficient
TC
Power Supply Ripple
Rejection
PSRR
VOUT = 3.3V, f = 1KHz,
IOUT = 100mA
COUT = 4.7µF
C(SR) = 0.01µF
BW = 200Hz to 100KHz
TA = 25oC
Output Voltage Noise
eN
IOUT = 250mA
COUT = 4.7µF,
TA = 25oC
C(SR) = 0.47µF
Enable Bar High (Shutdown) VENB(HI)
1.4
Enable High (Enabled)
VEN(HI)
VIN = 2.5V to 5.5V
Enable Bar Low (Enabled)
VENB(LO)
0
Enable Low (Shutdown)
VEN(LO)
Enable / Enable Bar Pin
Current (Enabled)
IEN / IENB ENB = 0, EN = VIN, VIN = 2.5V to 5.5V
Shutdown Current
Start up Time
ISHDN
TSTR
ENB = VIN, EN = 0, VIN = 2.5V to 5.5V
VOUT = 3.3V
RLOAD = 22â¦
COUT = 10µF
C(SR) = 0.01µF
C(SR) = 0.1µF
C(SR) = 0.22µF
TA = 25oC
Typ
1000
500
400
400
400
150
20
30
65
100
0.1
1
20
200
450
Max
1100
1200
600
650
550
600
550
600
550
600
Units
mV
oC
ppm
dB
µVRMS
VIN
V
0.3
1
µA
2
µA
mS
Rev.A.01
7
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