OM2940STM 0.5 VOLT LOW DROPOUT POSITIVE FIXED VOLTAGE REGULATOR APPROVED TO DESC DRAWING Three Terminal, Fixed Voltage, 1 Amp Low Dropout Voltage Regulator In Hermetic JEDEC TO-257AA Package FEATURES • • • • • • • Similar To Industry Standard LM2940 Approved To DESC Standardized Military Drawing Dropout Voltage Typically 0.5 V @ IO = 1 A Output Current in Excess of 1 A Reverse Battery Protection Internal Short Circuit Protection Isolated Hermetic Package DESCRIPTION These three terminal fixed voltage regulators are designed to provide 1.0A with high efficiency. It has the ability to source 1A of output current with a typical dropout voltage of .5V and a maximum of 1V over the entire temperature range. It is supplied in the hermetic TO-257 package and is ideally suited for Military applications where small size and high reliability is required. ABSOLUTE MAXIMUM RATINGS Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Vdc Output Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V, +12V, +15Vdc Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 125°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C Thermal Resistance: qJC (Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 A PART NUMBER DESIGNATOR 4 11 R1 Supersedes 3 02 R0 Standard Military Drawing Number Omnirel Part Number 5962-8958710MUX OM2940-5STM 5962-9088401MUX OM2940-12STM 5962-9088501MUX OM2940-15STM 3.3 - 97 3.3 ELECTRICAL CHARACTERISTICS, P/N OM2940-12 (12 Volt) Test Conditions are -55°C TA 125°C, VIN = 10 V, IO = 1 A, COUT = 22 µF (unless otherwise specified). Test Conditions are -55°C TA 125°C, VIN = 17 V, IO = 1 A, COUT = 22 µF (unless otherwise specified). Parameter Output Voltage Parameter Output Voltage Symbol VOUT Test Conditions Notes 1 2 1 Min. 4.85 4.75 4.85 Max. 5.15 5.25 5.15 2 1 2 1 2 4.75 4.85 4.75 4.85 4.75 5.25 5.15 5.25 5.15 5.25 VIN = 6 V, IOUT = 50 mA 1 2 1 2 1 2 4.85 4.75 4.85 4.75 4.85 4.75 5.15 5.25 5.15 5.25 5.15 5.25 VIN = 10 V, IOUT = 50 mA 1 2 4.85 4.75 5.15 5.25 VO 6 V, RO = 100 , t = 20 ms VIN = 10 V, IOUT = 5 mA VIN = 6 V, IOUT = 5 mA VIN = 7 V, IOUT = 5 mA VIN = 26 V, IOUT = 5 mA VIN = 10 V, IOUT = 1 A VIN = 6 V, IOUT = 1 A Maximum Line Transient Reverse Polarity Input Voltage DC Reverse Polarity 3.3 - 98 Input Voltage Transient Quiescent Current VLT 1, 2 40 VRIN RO = 100 1, 2 -15 VRIT RO = 100 , t =20 ms 1, 2 -45 IQ VIN = 10 V, IOUT = 5 mA VIN = 7 V, IOUT = 5 mA 1 2 1 2 1 VIN = 26 V, IOUT = 5 mA 2 VIN = 10 V, IOUT = 1 A Line Regulation Load Regulation Dropout Voltage VRLN VRLD VDO 7 V VIN 26 V, IOUT = 5 mA VIN = 10 V, 50 mA IOUT 1 A IOUT = 1 A IOUT = 100 mA Output Noise Voltage VON Output Impedance RO Short Circuit Current IOS Ripple Rejection RR Notes: VIN = 10 V, IO = 5 mA, 10 Hz - 100 Hz VIN = 10 V, IOUT = 100 mA dc and 20 mA ac, fO = 120 Hz Symbol VOUT Test Conditions Notes 1 2 1 Min. 11.64 11.40 11.64 Max. 12.36 12.60 12.36 2 1 2 1 2 11.40 11.64 11.40 11.64 11.40 12.60 12.36 12.60 12.36 12.60 VIN = 13.6 V, IOUT = 50 mA 1 2 1 2 1 2 11.64 11.40 11.64 11.40 11.64 11.40 12.36 12.60 12.36 12.60 12.36 12.60 VIN = 17 V, IOUT = 50 mA 1 2 11.64 11.40 12.36 12.60 VO 13 V, RO = 100 , t = 20 ms VIN = 17 V, IOUT = 5 mA VIN = 13.6 V, IOUT = 5 mA VIN = 14 V, IOUT = 5 mA VIN = 26 V, IOUT = 5 mA VIN = 17 V, IOUT = 1 A VIN = 13.6 V, IOUT = 1 A V Maximum Line Transient V Reverse Polarity Input Voltage DC Reverse Polarity Input Voltage Transient Quiescent Current mA VLT 2 1 2 1 2 1 2 1 2 ±40 ±50 ±50 ±100 .7 1 150 200 1, 2 40 V 1, 2 -15 V VRIT RO = 100 , t =20 ms 1, 2 -45 VIN = 17 V, IOUT = 5 mA 1 2 15 20 1 2 1 15 20 15 IQ 20 VIN = 26 V, IOUT = 5 mA 100 VIN = 17 V, IOUT = 1 A 1, 2 700 1, 2 1 VIN = 10 V 1.5 1.3 VIN = 10 V + 1 V rms, IOUT = 5 mA, f = 1 kHz 1 2 60 50 VRLN Load Regulation VRLD Dropout Voltage VDO mV V A dB VIN = 17 V, 50 mA IOUT 1 A IOUT = 1 A IOUT = 100 mA mV µV rms 14 V VIN 26 V, IOUT = 5 mA Output Noise Voltage VON Output Impedance RO Short Circuit Current IOS Ripple Rejection RR Notes: VIN = 17 V, IO = 5 mA, 10 Hz - 100 Hz VIN = 17 V, IOUT = 100 mA dc and 20 mA ac, fO = 120 Hz V 2 1 Line Regulation V RO = 100 VIN = 14 V, IOUT = 5 mA mV Unit VRIN 50 1 2 1. TA = 25°C. 2. Over full operating temperature range. V V 15 20 15 20 15 1 Unit mA 20 50 2 60 1 2 1 2 1 2 1 2 ±75 ±120 ±120 ±190 .7 1 150 200 1 1000 1, 2 mV mV V mV µV rms 1 VIN = 17 V 1 2 1.6 1.3 A VIN = 17 V + 1 V rms, IOUT = 5 mA, f = 1 kHz 1 2 52 46 dB 1. TA = 25°C. 2. Over full operating temperature range. OM2940STM 3.3 ELECTRICAL CHARACTERISTICS, P/N OM2940-5 (5 Volt) ELECTRICAL CHARACTERISTICS, P/N OM2940-15 (15Volt) PIN CONNECTION Test Conditions are -55°C TA 125°C, VIN = 20 V, IO = 1 A, COUT = 22 µF (unless otherwise specified). Parameter Output Voltage Symbol VOUT Test Conditions VIN = 20 V, IOUT = 5 mA VIN = 16.75 V, IOUT = 5 mA VIN = 17 V, IOUT = 5 mA VIN = 26 V, IOUT = 5 mA VIN = 20 V, IOUT = 1 A VIN = 16.75 V, IOUT = 1 A VIN = 16.75 V, IOUT = 50 mA VIN = 20 V, IOUT = 50 mA Maximum Line Transient Reverse Polarity 3.3 - 99 Input Voltage DC Reverse Polarity Input Voltage Transient Quiescent Current VLT VO 16 V, RO = 100 , t = 20 ms Max. 14.55 14.25 14.55 14.25 14.55 14.25 14.55 14.25 14.55 14.25 14.55 14.25 14.55 14.25 14.55 14.25 40 15.45 15.75 15.45 15.75 15.45 15.75 15.45 15.75 15.45 15.75 15.45 15.75 15.45 15.75 15.45 15.75 Unit 1 V -15 VRIT RO = 100 , t =20 ms 1, 2 -45 VIN = 20 V, IOUT = 5 mA 1 2 15 20 1 2 1 2 1 2 1 2 1 2 1 2 1 2 15 20 15 20 50 60 ±95 ±150 ±150 ±240 .7 1 150 200 mV 1 1000 µV rms VIN = 20 V, IOUT = 1 A VRLN Load Regulation VRLD Dropout Voltage VDO 17 V VIN 26 V, IOUT = 5 mA VIN = 20 V, 50 mA IOUT 1 A IOUT = 1 A IOUT = 100 mA VON Output Impedance RO Short Circuit Current IOS Ripple Rejection RR VIN = 20 V, IO = 5 mA, 10 Hz - 100 Hz VIN = 20 V, IOUT = 100 mA ac and 20 mA dc, fO = 120 Hz 1, 2 Pin 1: VIN Pin 2: Gnd V Pin 3: VOUT Tab: Isolated MECHANICAL OUTLINE V mA .200 .190 .420 .410 .045 .035 .665 .645 .150 .140 .537 .527 .430 .410 mV .038 MAX. V .750 .500 mV .005 1 VIN = 20 V 1 2 1.6 1.3 A VIN = 20 V + 1 V rms, IOUT = 5 mA, f = 1 kHz 1 2 48 42 dB 1. TA = 25°C. 2. Over full operating temperature range. 3 .035 .025 .100 TYP. NOTES • Case is metal/hermetically sealed • Isolated Tab .120 TYP. 3.3 OM2940STM Output Noise Voltage 2 Front View 1, 2 IQ Tab V RO = 100 VIN = 26 V, IOUT = 5 mA Notes: Min. 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1, 2 VRIN VIN = 17 V, IOUT = 5 mA Line Regulation Notes OM2940STM TYPICAL APPLICATIONS 200 400 600 800 1000 Output Current (mA) 1A 500 mA 100 mA 0 40 80 120 Temperature (°C) Quiescent Current vs Temperature Quiescent Current (mA) Quiescent Current (mA) VIN = VOUT +5V 30 1A 20 500 mA 10 10 mA 0 -40 3.3 0 40 80 120 Temperature (°C) 160 200 180 160 140 120 100 80 60 40 20 0 Output Voltage Deviation (V) 3V 10 20 30 40 50 60 Time (µs) 100 mA 500 mA 1A 0 5 40 20 10 0 10 15 20 25 30 35 Input Voltage (V) VIN = 14V VOUT = 5V TJ = 25°C 30 0 0.2 0.4 0.6 0.8 Load Current (A) 1.0 Ripple Rejection 95 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 1.0 VIN = 10V, COUT = 22µF TJ = 25°C, VOUT =5V 0.5 0 160 Quiescent Current Load Transient Response Load Current Change (A) Output Voltage Deviation (mV) Input Voltage Change (V) 30 20 10 0 -10 -20 -30 0 40 80 120 Temperature (°C) 50 Line Transient Response 0V -10 0 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 -40 Quiescent Current 50 40 160 Quiescent Current (mA) 0 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -40 Output Voltage (5V) TJ = 25°C Output Voltage vs Temperature Ripple Rejection (dB) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 Dropout Voltage vs Temperature Dropout Voltage (V) Inout - Output Differential (V) Dropout Voltage 85 75 VIN = 10V COUT = 22µF IOUT = 10mA VOUT =5V 65 55 45 35 -10 0 10 20 Time (µs) 30 40 1 10 100 1k 10k 100k 1M Frequency (Hz) 205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246