Tab is
V
OUT
INPUT
OUTPUT
ADJ/GND
LMS1585A/87-3.3V
IN
4.75V
3.3V
3A, 5A
+ +
C2*
10 µF
C1
10 µF
* Required for Stability
LMS1585A , LMS1587
www.ti.com
SNVS061G –MONTH 2003–REVISED JULY 2013
LMS1585A 5A/LMS1587 5A and 3A Low Dropout Fast Response Regulators
Check for Samples: LMS1585A , LMS1587
1
FEATURES
DESCRIPTION
The LMS1585A and LMS1587 are low dropout
234
• Fast Transient Response
positive regulators with output load current of 5A and
• Available in Adjustable, 1.5V, and 3.3V
3A respectively. Their low dropout voltage (1.2V) and
versions
fast transient response make them an excellent
• Current Limiting and Thermal Protection
solution for low voltage microprocessor applications.
• Commercial Temp. Tange: 0°C to 125°C
The LMS1585A/87 are available in adjustable
versions, which can set the output voltage with only
• Industrial Temp. Range: −40°C to 125°C
two external resistors. In addition, they are also
• Line Regulation 0.005% (typical)
available in 1.5V and 3.3V fixed voltage versions
(1)
.
• Load Regulation 0.05% (typical)
The LMS1585A/87 circuits include a zener trimmed
• Direct Replacement for LT
®
1585A/87
bandgap reference, current limiting and thermal
shutdown. The LMS1585A/87 series are available in
APPLICATIONS
KTT (TO-263) and NDE (TO-220) packages.
• Pentium
®
processor supplies
• PowerPC
®
supplies
• Other microprocessor supplies
• Low voltage logic supplies (1) Consult factory for other fixed voltage options.
Typical Application
Figure 1. NDE (TO-220) Figure 2. KTT (TO-263)
(Top View) (Top View)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2PowerPC is a registered trademark of IBM.
3Pentium is a registered trademark of Intel Corporation.
4LT is a registered trademark of Linear Technology.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
