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PD-94468A Ultra Low Dropout Linear Regulator Hermetic Package OM8503SC OM8503SF +7.4Vin to +6.8Vout at 3.0A Product Summary Part Number OM8503SC OM8503SF Dropout 0.4 V 0.4 V IO 3.0A 3.0A Vin 7.4V 7.4V Vout 6.8V 6.8V Package MO-078AA 8-lead Flatpack MO-078AA Features: The OM8503 is an ultra low dropout linear regulator designed specifically for hi-rel applications. Housed in either a 5 pin through hole or 8 lead surface mount package these regulators provide high reliability in military/ defense applications. The ultra low dropout voltage of 0.4V @ 3A makes the part particularly useful for applications requiring low noise and higher efficiency. n Ultra low dropout voltage of 0.4 volt sig- nificantly reduces power consumption n Low noise, higher efficiency n Remote shutdown permits power sequencing to be easily implemented n Hermetic MO-078AA (TO-258AA) and 8- lead flat pack ensure higher reliability n Available H-level screened Absolute Maximum Ratings Symbol Parameter Value Units 3.5 +8.0 A V Io V in Output Current Input Voltage PTOT Power Dissipation TC=25 o C 19 W Thermal Resistance, Junction to Case (MO-078AA) Thermal Resistance, Junction to Case (8 lead flatpack) 6.5 6.5 °C/W Operating Junction -55 to +125 oC Storage Temperature Range -65 to +150 oC 300 oC RTHJC RTHJC TJ TSTG TL www.irf.com Lead Temperature °C/W 1 8/20/02
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