LX8385-00ID Ver la hoja de datos (PDF) - Microsemi Corporation
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LX8385-00ID Datasheet PDF : 11 Pages
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A MICROSEMI COMPANY
LX8385x-xx
3A Low Dropout Positive Regulators
PRODUCTION DATA SHEET
IN
V
IN
(Note A) +
10µF
LX8385x
ADJ
OUT
R1
121Ω 1%
VOUT
150µF
R2
365Ω 1%
* C1 improves ripple rejection.
XC should be ≈ R1 at ripple
frequency.
C1
+ 10µF*
FIGURE 4 - IMPROVING RIPPLE REJECTION
(Note A)
IN
V IN
+
C1*
10µF
LX8385x
ADJ
OUT
V OUT**
R1
121Ω 1%
+
C2
100µF
R2
1k
* Needed if device is far from filter capacitors.
R2
* *VOUT = 1.25V 1 +
R1
FIGURE 5 - 1.2V - 8V ADJUSTABLE REGULATOR
V IN
(note A)
+
10µF
TTL
O u tp u t
IN
OUT
LX8385x
5V
ADJ
1k
2N3904
1k
121Ω
1%
+
365Ω
1%
100µF
FIGURE 6 - 5V REGULATOR W ITH SHUTDOW N
IN
V IN
10µF Tantalum or
100µ F Alum inum
LX8385x
ADJ
OUT
3.3V
Min. 15µF Tantalum or
100µ F Alum inum capacitor. May
be increased without lim it. ESR
m ust be less than <400m Ω .
FIGURE 7 - FIXED 3.3V OUTPUT REGULATOR
N o t e A : VIN(MIN) = (Intended VOUT ) + VDROPOUT(MAX)
Copyright © 2000
Rev. 2.0a, 2001-03-15
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
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