LMS1587

LMS1585A/LMS1587 5A Low Dropout Fast Response Regulators April 2000 LMS1585A/LMS1587 5A and 3A Low Dropout Fast Response Regulators General 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 a 3.3V fixed voltage version (Note 9). The LMS1585A/87 circuits include a zener trimmed bandgap reference, current limiting and thermal shutdown. The LMS1585A/87 series are available in TO-220 and TO263 packages. Features n n n n n n n n Fast transient response Available in Adjustable, 1.5V, and 3.3V versions Current limiting and thermal protection Commercial temp. range 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 n n n n Pentium™ processor supplies PowerPC™ supplies Other 2.5V to 3.6V microprocessor supplies Low voltage logic supplies Typical Application DS101197-1 Connection Diagrams TO-220 TO-263 DS101197-36 Top View DS101197-35 Top View LT is a registered trademark of Linear Technology Corporation Pentium is a registered trademark of Intel Corporation PowerPC is a registred trademark of IBM...