LX8819 データシートの表示（PDF） - Microsemi Corporation
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LX8819 Datasheet PDF : 9 Pages
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LX8819
TM
®
Dual Channel 1A Low Dropout Regulator
DATA SHEET
TRANSIENT RESPONSE-CERAMIC CAP
50mV
/ DIV
50mV
/ DIV
VOUT1 = 1.5V 180 Load
VOUT2 = 3.3V 1A Step Load
1A
1mA
CIN = 20µF Ceramic (ESR= 45mΩ)
COUT(VOUT1) = COUT(VOUT2) = 10µF Ceramic (ESR= 75mΩ)
TURN ON CHARACTERISTICS
500mV
/ DIV
VOUT2 = 3.3V
1V /
VIN = 5V
DIV
500m
V/
DIV
VOUT1 = 1.5V
TRANSIENT RESPONSE-TANT CAP
50mV
/ DIV
VIN = 5V
50mV
/ DIV
V1 = 1.5V
50mV
/ DIV
V2 = 3.3V 1A Step Load
1A
0mA
CIN = 22µF Tantalum (ESR= 232mΩ)
COUT(VOUT1) = COUT(VOUT2) = 10µF Tantalum (ESR= 198mΩ)
CURRENT LIMIT
20mV(A
C) / DIV
500mV
/ DIV
VOUT1 = 1.5V
VOUT2 = 3.3V
1.2A
Rising Load
On V2
200mA
/ DIV
RIPPLE REJECTION
45
40
35
30
25
20
15
10
5
0
100
1000
10000
100000
FREQUENCY (HZ)
VIN = 5V, CIN = 22µF, COUT1,2 = 10µF, VOUT2=3.3V, IOUT2=1A
Copyright © 2003
Revision 1.0a, 4/29/2005
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7
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