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| OM7659ST Preliminary Data Sheet OM7660ST VOLTAGE CONVERTER IN AN ISOLATED HERMETIC PACKAGE OM7661ST Voltage Converter, 1 Amp, 5V To 3.0V, 3.3V Or Adjustable Output 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 (Pd). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W Continuous Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A Operating and Storage Temperature Range. . . . . . . . . . . . . . . . . . . . - 55C to + 150 C Thermal Resistance, RqJC, Junction-to-Case, Typical . . . . . . . . . . . . . . . . . . . . . . 5 C/W Lead Soldering Temperature, 10 second time limit . . . . . . . . . . . . . . . . . . . . . . . . 260 C 3.3 4 11 R0 3.3 - 207 OM7659ST - OM7661ST ELECTRICAL CHARACTERISTICS Part No. OM7659ST VO OM7660ST 5V OM7661ST All VREF REG(LOAD) TC 1 Symbol Test Conditions VIN IO 500mA 10mA to 1A 500mA 10mA to 1A 500mA 10mA to 1A 10mA to 1A 500mA TJ 25C -55C to 125C 25C -55C to 125C 25C -55C to 125C 25C 25 to 125C Min. 2.90 2.80 3.20 3.10 1.20 1.10 Test Limits Typ. 3.00 3.30 1.25 0.5 0.005 Max. 3.10 3.20 3.40 3.50 1.30 1.40 1.15 0.01 %VO %VO/C V Units Note: 1. Temperature Coefficient OM7659ST/OM7660ST Pin Connection Mechanical Outline .420 .410 .200 .190 .045 .035 .150 .140 .665 .645 .537 .527 .430 .410 .038 MAX. Pin 1: Output Pin 2: Input 1 2 .045 .035 .750 .500 .005 .200 TYP. .120 TYP. OM7661ST Pin Connection Mechanical Outline .420 .410 .200 .190 .045 .035 Adjusting +5V 3 R1 3.3 .150 .140 .665 .645 .537 .527 .430 .410 1 R2 .038 MAX. Pin 1: Adj. Pin 2: Output Pin 3: Input 123 2 VOUT .750 .500 .005 .035 .025 .100 TYP. .120 TYP. 205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246 |
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