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PDF AME8830 Data sheet ( Hoja de datos )
| Número de pieza | AME8830 | |
| Descripción | Fast Turn On 150mA CMOS Regulator | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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AME, Inc.
AME8830
n General Description
The AME8830 is designed for portable and wireless
application with low dropout voltage and optimized perfor-
mance for battery powered systems to deliver ultra low
noise. The space-saving SOT-25 package is attractive for
Pocket and Hand Held applications.
The AME8830 is stable with a small 1µF output ca-
pacitor.
In applications requiring a low noise without slowing
down the load transient response, Place a 0.01µF ca-
pacitor between Bypass and Ground.
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Ultra Low Dropout, Fast Turn On
150mA CMOS Regulator
n Functional Block Diagram
VIN
EN Vref
1.2V
Bypass
Fast
Turn On
VOUT
R1
Over Current &
Thermal Protection
R2
GND
n Features
l Guaranteed 150mA Output
l Thermal Shutdown
l Very Low Dropout Voltage
l Current Limiting
l Fast Turn-On Time: 150µs
l Miniature SOT-25 Package
l Logic Controlled Enable
l All AME's Lead Free Product Meet RoHS
Standard
n Typical Application
V IN VIN VOUT
AME8830
BYP GND EN
C1 C2
1µF 0.01µF
VOUT
C3
1µF
n Applications
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
1
1 page  
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AME, Inc.
AME8830
Ultra Low Dropout, Fast Turn On
150mA CMOS Regulator
n Electrical Specifications
Unless otherwise specilied: TJ = 25OC, VIN=VOUT(NOM)+0.5V, CIN=1µF, IOUT=1mA, COUT=1µF, CBYPASS=0.01µF
Typical values are at TJ = 25OC.
Parameter
Symbol
Test Condition
Min Typ Max
Units
Input Voltage
Output Voltage Accuracy
Dropout Voltage
Current Limit
Max Input Current at EN
Quiescent Current
Ground Pin Current
Shutdown Current
Line Regulation
Load Regulation
Over Temperature Shutdown
Over Temperature Hysterisis
VIN 2.5 5
IOUT = 1mA
-2 2
VO
0mA< IOUT <= 150mA
VIN = (VOUT + 0.5V) to 5.0V
TJ= -40oC~+125oC
-3
3
IOUT = 1mA
0.6 2
VDROPOUT
IOUT = 50mA
IOUT = 100mA
TJ= -40oC~+125oC
30 35
60 70
IOUT = 150mA
90 100
ILIM
VO < 0.1V
180 600
IEN VEN = 0.4 and VIN = 5.0
+/- 1
IQ
VEN = 1.4
IOUT = 0mA
TJ= +25oC
TJ= -40oC~+125oC
135 150
175
IGND
VEN = 1.4
IOUT = 0 to 150mA
TJ= -40oC~+125oC
155 200
ISD
VEN = 0.4
TJ= -40oC~+125oC
0.15 1.5
TJ=+25oC
-0.15
REGLINE VIN = (VOUT + 0.5V) to 5.0V TJ= -40oC~+125oC -0.2
0.15
0.2
REGLOAD
IOUT = 1mA to 150mA
TJ= -40oC~+125oC
0.0025 0.005
OTS 150
OTH 20
V
%
mV
mA
nA
µA
%/V
%/V
%/mA
oC
oC
Power Supply Rejection
PSRR
Output Voltage Noise
EN Input Threshold
Short Circuit Current Limit
en
VEH
VEL
Isc
VIN = VOUT + 0.2
f = 1 KHz, IOUT = 50mA
1KHz to 100 KHz
COUT = 1µF
1KHz to 100 KHz
COUT = 1µF, CBP=0.01µF
53 dB
100 µVrms
1 µV/ Hz
VIN=2.5V to 5.0V
VIN=2.5V to 5.0V
1.4
TJ= -40oC~+125oC
V
0.4 V
Output Grounded
300 mA
Turn_On Time TON CBYPASS = 0.01µF
150 µs
5
5 Page 
AME, Inc.
AME8830
Enable Response
VEN
2V/Div
VIN= 4.2V
IL=150mA
CBP=0.01 µ F
0
VOUT
1V/Div
100µS/Div
Output Noise Spectral Density
10
CBP=0µF,
IOUT =1,50,100,150mA
1
CBP=0.21 µF,
IOUT=1,50,100,150mA
0.1
1
CBP=0.01 µF,
IOUT=1,50,100,150mA
10
Frequency(kHz)
100
Ripple Rejection
0
-10 VIN=VOUT +1V
-20 IL =100mA
-30
-40
I L=0mA
-50
-60 IL=150mA
-70
-80 IL=50mA
-90
-100
100
1K 10K 100K
Frequency(Hz)
1M
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Ultra Low Dropout, Fast Turn On
150mA CMOS Regulator
Ripple Rejection
0
-10 VIN=VOUT +0.2V
-20
IL=100mA
-30 IL=150mA
IL=0mA
-40 IL=50mA
-50
-60
-70
-80
-90
-100
100
1K 10K 100K
Frequency(Hz)
1M
1.85
1.65
1.45
1.25
1.05
0.85
0.65
0.45
0.25
0.05
100
Output Impedance
VIN=4.2V
IL=50mA
IL=150mA
1000
10000
100000
Frequency(Hz)
1000000
Output Impedance
1.85
1.65
VI N =V OUT+0.2V
1.45
IL=50mA
1.25
1.05
0.85
0.65
0.45 I L=150mA
0.25
0.05
100
1000
10000
100000
Frequency(Hz)
1000000
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AME8830.PDF ] | |
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