LX8117-xx / 8117A-xx / 8117B-xx
0.8, 1 & 1.2A LOW DROPOUT POSITIVE REGULATORS
P R O D U C T I O N D A T A S H E E T
T H E I N F I N I T E P O W E R O F I N N O V A T I O N
KEY FEATURES
DESCRIPTION
The LX8117/8117A/8117B series are positive
Low Dropout (LDO) regulators. At the designed
maximum load current, the LX8117 series
differential voltages down to 1V.
Most regulator circuit designs include output
capacitors with values in the range of tens to
0.2% Line Regulation Maximum
0.4% Load Regulation Maximum
Output Current Of 800mA
Regulates Down To 1.2V
Dropout (LX8117) And 1.3V
Dropout (LX8117A)
Operates Down To 1V Dropout
Space Saving SOT-223 Surface
Mount Package
Guaranteed Dropout Voltage At
Multiple Current Levels
Three-Terminal Adjustable Or
Fixed 2.5V, 2.85V, 3.3V & 5V
dropout voltage is guaranteed to be 1.2V or hundreds of microfarads or more. The
lower at 0.8A (LX8117A 1.3V @ 1A). The
dropout voltage decreases with load current.
An adjustable output voltage version of the
LX8117/17A/17B is available, as well as to as much as 10 percent of their output as a
versions with fixed outputs of 2.5V, 2.85V, 3.3V quiescent current which flows directly to
and 5V. The 2.85V version is specifically ground, bypassing the load. Quiescent current
designed for use as a component of active
termination networks for the SCSI bus. On-chip load, increasing power-use efficiency and
trimming of the internal voltage reference allows
specification of the initial output voltage to
LX8117/17A/17B typically requires at least
10µF of output capacitance for stable operation.
PNP-type regulators can waste current equal
from the LX8117/17A/17B flows through the
allowing cooler operation.
The LX8117 is available in low-profile
within ±1% of its nominal value. The output plastic SOT-223 and D-Pak packages for
APPLICATIONS
current-limit point is also trimmed, which helps
to minimize stress on both the regulator and the
applications where space is at a premium. The
LX8117 is also available in a plastic TO-263
Battery Chargers
Active SCSI Terminators
5V To 3.3V Linear Regulators
High-Efficiency Linear
Regulators
system power source when they are operated package for instances when the thermal
under short-circuit conditions. The regulator's resistance from the circuit die to the
internal circuitry will operate at input-to-output
environment must be minimized.
Post Regulators For Switching
Supplies
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
Available Options Per Part #
ACTIVE TERMINA TOR FOR SCSI-2 B US
Part #
Output Voltage
LX8117(x)-25
LX8117(x)-28
LX8117(x)-33
LX8117(x)-05
2.5V
2.8V
3.3V
5V
110 Ω
110 Ω
(x) – denotes O/P Current Setting
LX8117-28
18 to 27
Lines
110 Ω
IN
OUT
GND
4.75Vto
5.25V
22 µF
10 µF
110 Ω
PACKAGE ORDER INFO
Plastic SOT-223 Plastic TO-263
Plastic TO-252
(D-Pak) 3-Pin
RoHS Compliant / Pb-free
Transition DC: 0532
O/P
Current
ST
DD
DT
3-Pin
3-Pin
TA (°C)
RoHS Compliant / Pb-free
Transition DC: 0522
RoHS Compliant / Pb-free
Transition DC: 0535
0.8A
1.0A
1.2A
LX8117-xxCST
LX8117A-xxCST
LX8117B-xxCST
LX8117-xxCDD
LX8117A-xxCDD
LX8117B-xxCDD
LX8117-xxCDT
LX8117A-xxCDT
LX8117B-xxCDT
0 to 125
Note: Available in Tape & Reel. Append the letter “TR” to the part number. (i.e. LX8117-00CST-TR)
M I C R O S E M I I N C .
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
Copyright © 2000
Rev. 1.5a,2005-10-25
1