3.3 - 207 3.3 voltage converter, 1 amp, 5v to 3.0v, 3.3v or adjustable output 4 11 r0 voltage converter in an isolated hermetic package features ? hermetic package, isolated substrate ? mil-spec temperature range ? external compensating components not required ? drops 5v to 3.0v, 3.3v, adjustable ? 1.0 amp output ? available hi-rel screened description these voltage converters are both fixed output voltage and adjustable. they operate with a regulated 5v input and drop the input to 3.0v or 3.3v over at output current range from 10ma to 1.0a. the fixed voltage output devices are two terminal devices and the adjustable version is a three terminal device which permits output voltage trimming. absolute maximum ratings @ 25c power dissipation (p d )...................................................2 w continuous current ......................................................1 a operating and storage temperature range ....................- 55c to + 150 c thermal resistance, r q jc , junction-to-case, typical ......................5 c/w lead soldering temperature, 10 second time limit ........................ 260 c om7661st om7659st OM7660ST preliminary data sheet
3.3 205 craw ford street, leominster, ma 01453 usa (508) 534-5776 fax (508) 537-4246 om7659st - om7661st electrical characteristics test conditions test limits part no. symbol v in i o t j min. typ. max. units om7659st 500ma 25c 2.90 3.00 3.10 v o 10ma to 1a -55c to 125c 2.80 3.20 OM7660ST 500ma 25c 3.20 3.30 3.40 v 5v 10ma to 1a -55c to 125c 3.10 3.50 om7661st v ref 500ma 25c 1.20 1.25 1.30 10ma to 1a -55c to 125c 1.10 1.40 all reg (load) 10ma to 1a 25c 0.5 1.15 %v o t c 1 500ma 25 to 125c 0.005 0.01 %v o /c note: 1. temperature coefficient .045 .035 .430 .410 .200 .190 .038 max. .120 typ. .537 .527 .665 .645 .420 .410 .150 .140 .750 .500 .200 typ. .045 .035 .005 .430 .410 .200 .190 .038 max. .005 .120 typ. .537 .527 .665 .645 .420 .410 .150 .140 .750 .500 .100 typ. .035 .025 .045 .035 r1 r2 3 2 1 +5v v out om7659st/OM7660ST pin connection mechanical outline om7661st pin connection mechanical outline adjusting 12 123 pin 1: output pin 2: input pin 1: adj. pin 2: output pin 3: input
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