LMS1587 Datasheet | Texas Instruments

FEATURES - 234 Fast Transient Response - Available in Adjustable, 1.5V, and 3.3V versions - Current Limiting and Thermal Protection - mercial Temp. Tange: 0°C to 125°C - Industrial Temp. Range: - 40°C to 125°C - Line Regulation 0.005% (typical) - Load Regulation 0.05% (typical) - Direct Replacement for LT® 1585A/87 APPLICATIONS - Pentium® processor supplies - Power PC® supplies - Other microprocessor supplies - Low voltage logic supplies DESCRIPTION The LMS1585A and LMS1587 are low dropout positive regulators with output load current of 5A and 3A respectively. Their low dropout voltage (1.2V) and fast transient response make them an excellent solution for low voltage microprocessor applications. The LMS1585A/87 are available in adjustable versions, which can set the output voltage with only two external resistors. In addition, they are also available in 1.5V and 3.3V fixed voltage versions(1). The LMS1585A/87 circuits include a zener trimmed bandgap reference, current limiting and thermal shutdown. The LMS1585A/87 series are available in KTT (TO-263) and NDE (TO-220) packages. (1) Consult factory for other fixed voltage options. Typical Application VIN _4.75V LMS1585A/87-3.3 + C1 10 µF 3.3V 3A, 5A + C2- 10 µF - Required for Stability VOUT INPUT OUTPUT ADJ/GND Figure 1. NDE (TO-220) (Top View) Tab is VOUT INPUT OUTPUT ADJ/GND Figure 2. KTT (TO-263) (Top View) 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. Power PC is a registered trademark of IBM. Pentium is a registered trademark of Intel Corporation. LT is a registered trademark of Linear Technology. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all...