PRODUCT DATABOOK 1996/1997
LX8117-xx/8117A-xx/8117B-xx
0.8, 1 & 1.2A L OW DR O P O U T PO S I T I V E RE G U L AT O R S
PR O D U C T I O N D ATA S H E E T
TYPICAL APPLICATIONS
(Note A)
VIN
10µF
LX8117-xx
IN
OUT
ADJ
R1
121Ω
1%
5V
VOUT
150µF
* C1 improves ripple rejection.
XC should be ≈ R1 at ripple
frequency.
R2
365Ω
1%
C1
10µF*
FIGURE 4 — IMPROVING RIPPLE REJECTION
VIN
(Note A)
LX8117-xx
IN
OUT
ADJ
C1*
10µF
R2
1k
R1
121Ω
VOUT**
C2
100µF
* Needed if device is far from filter capacitors.
** VOUT = 1.25V
1
+
R2
R1
FIGURE 5 — 1.2V - 8V ADJUSTABLE REGULATOR
VIN
10µF Tantalum
or 100µF Aluminum
LX8117-33
IN
OUT
GND
3.3V
Min. 15µF Tantalum or
100µF Aluminum capacitor.
May be increased without
limit. ESR must be less
than 50mΩ.
FIGURE 6 — FIXED 3.3V OUTPUT REGULATOR
Note A: VIN (MIN) = (Intended VOUT) + (V ) DROPOUT (MAX)
PRODUCTION DATA - Information contained in this document is proprietary to Linfinity, and is current as of publication date. This document
may not be modified in any way without the express written consent of Linfinity. Product processing does not necessarily include testing of
all parameters. Linfinity reserves the right to change the configuration and performance of the product and to discontinue product at any time.
Copyright © 1999
Rev. 1.5a
9