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| OM7905SM OM7912SM OM7915SM SURFACE MOUNT NEGATIVE FIXED VOLTAGE REGULATOR Three Terminal, Fixed Voltage, 1.0 Amp Precision Negative Regulator In A Hermetic Surface Mount Package FEATURES * * * * * * Hermetic Surface Mount Package Output Voltages: -5V, -12V, -15V Output Voltages Set Internally to 2% Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Hi-Rel Screened DESCRIPTION This three terminal negative regulator is supplied in a hermetically sealed surface mount package. All protective features are designed into the circuit, including thermal shutdown, current limiting and safe-area control. With heat sinking, they can deliver 1.0 amp of output current. This unit features internally trimmed voltages to 2% of nominal voltage. Standard voltages are -5V, -12V and -15V. These units are ideally suited for Military applications where a hermetic surface mount package is required. ABSOLUTE MAXIMUM RATINGS @ 25C Power Dissipation (Pd) (Internally Limited). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 W Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 35 V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C Lead Temperature (Soldering 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280C Thermal Resistance: Junction-to-Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18C/W MECHANICAL OUTLINE .450 SQ. .02 x 45 .090 MAX. .035 4 PIN 1 PIN 28 1 26 TOP .05 X 45 MAX. 3 PLCS. SIDE .009 R. BOTTOM 28 PLCS. .300 4 PLCS. .050 24 PLCS. 12 .305 SQ. 18 Pin Connection Pin 1, 15 thru 28: OUT Pin 2, 3, 13, and 14: GND Pin 4 thru 12: IN 3.5 4 11 R0 3.5 - 157 OM7905SM OM79012SM OM79015SM ELECTRICAL CHARACTERISTICS Parameter Output Voltage, VOUT Part Number OM7905SM OM7912SM OM7915SM IO = 500mA, -55C TA 125C (unless otherwise specified.) OM7905SM: VIN = -10V; OM7912SM: VIN = -19V; OM7915SM: VIN = -23V. Conditions VIN = -7.5V to -20V VIN = -14.5V to -27V VIN = -17.5V to -30V VIN = -7.5V to -20V OM7905SM VIN = -8.0V to -12V VIN = -14.5V to -27V OM7912SM VIN = -16V to -22V VIN = -17.5V to -30V OM7915SM VIN = -20V to -26V Load Regulation, VRLOAD (Note 1) IO = -5mA to -1.0Amp OM7905SM IO = -250mA to -750mA IO = -5mA to -1.0Amp OM7912SM IO = -250mA to -750mA IO = -5mA to -1.0Amp OM7915SM IO = -250mA to -750mA Standby Current Drain, ISCD OM7905SM OM7912SM OM7915SM Standby Current Drain Change With Line, ISCD (Line) Standby Current Drain Change With Load, ISCD (Load) Dropout Voltage Peak Output Current, IO (pk) Short Circuit Current, IDS (Note 2) Ripple Rejection VIN VOUT * * * * * * * * * * * * * * * * * * * * Min. -5.15 -12.36 -15.45 Line Regulation, VRLINE (Note 1) OM7905SM OM7912SM OM7915SM VIN = -7.0V to -20V VIN = -14.5V to -27V VIN = -17.5V to -30V IO = 5mA to 1000mA VOUT = 100mV, IO = 1.0A TA = 25C VIN = -35V Max. -4.85 -11.64 -14.55 20 35 12 20 33 80 24 70 41 82 36 60 35 50 25 45 55 70 26 55 60 110 34 70 3.0 3.5 4.2 4.6 7.2 8.0 0.6 1.0 1.0 0.6 2.5 Units V V V mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mA mA mA mA mA mA mA mA mA mA V A A A dB dB dB dB dB dB V/V rms mV mV mV * * .70 * * * * 63 60 56 53 53 50 2.0 1.0 2.0 OM7905SM OM7912SM OM7915SM f = 120Hz, VIN = -10V f = 120Hz, VIN = 10V f = 120Hz, VIN = 10V TA = 25C, f = 10Hz to 100kHz 3.5 RMS Output Noise, NO (Note 3) Long Term Stability (Note 3) VIN t OM7905SM OM7912SM OM7915SM TA = 25C, t = 1000 hrs. 40 75 120 150 Note 1: Load and line regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used. Changes in output voltage due to heating effects must be taken into account separately. Note 2: Short Circuit protection is only assured up to VIN = -35V. Note 3: If not tested, shall be guaranteed to the specified limits. The * denotes the specifications which apply over the full operating temperature range. If not noted TA = 25C |
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