OM2940-05SM OM2940-15SM OM2940-12SM SURFACE MOUNT 0.5 VOLT LOW DROPOUT POSITIVE REGULATOR Isolated Hermetic Surface Mount Package Three Terminal, Fixed Voltage, 1 Amp Low Dropout Voltage Regulator FEATURES • • • • • • Similar To Industry Standard LM2940 Dropout Voltage Typically 0.5V @ IO = 1A Output Current Up To 1A Reverse Battery Protection Internal Short Circuit Protection Isolated Hermetic Surface Mount 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 a hermetic surface mount package and is ideally suited for Military applications where small size and high reliability are required. ABSOLUTE MAXIMUM RATINGS @ 25°C Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Vdc Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V, +12V, +15 Vdc 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: θJC (Isolated). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15°C/W Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0A a 3.5 4 11 R0 3.5 - 57 3.5 - 58 VDO VON RO IOS RR Dropout Voltage Output Noise Voltage Output Impedance Short Circuit Current Ripple Rejection VIN = 10 V, IOUT = 50 mA VIN = 10 V + 1 V rms, IOUT = 5 mA, f = 1 kHz VIN = 10 V VIN = 10 V, IOUT = 100 mA dc and 20 mA ac, fO = 120 Hz VIN = 10 V, IO = 5 mA, 10 Hz - 100 Hz IOUT = 100 mA IOUT = 1 A VIN = 10 V, 50 mA ≤ IOUT ≤ 1 A 7 V ≤ VIN ≤ 26 V, IOUT = 5 mA VIN = 10 V, IOUT = 1 A VIN = 26 V, IOUT = 5 mA VIN = 7 V, IOUT = 5 mA VIN = 10 V, IOUT = 5 mA RO = 100 ,Ω t =20 ms RO = 100 Ω VO ≤ 6 V, RO = 100 ,Ω t = 20 ms 1. TA = 25°C. 2. Over full operating temperature range. VRLD Load Regulation Notes: VRLN IQ VRIT VRIN VLT Line Regulation Reverse Polarity Input Voltage DC Reverse Polarity Input Voltage Transient Quiescent Current Maximum Line Transient VIN = 6 V, IOUT = 50 mA VIN = 6 V, IOUT = 1 A VIN = 10 V, IOUT = 1 A VIN = 26 V, IOUT = 5 mA VIN = 7 V, IOUT = 5 mA VIN = 6 V, IOUT = 5 mA VIN = 10 V, IOUT = 5 mA 1 2 1 2 1, 2 1 2 1 2 1 2 1 2 1, 2 1 2 1 2 1 2 1 2 1, 2 1, 2 1, 2 60 50 1.2 1.0 -45 -15 40 Min. 4.85 4.75 4.85 4.75 4.85 4.75 4.85 4.75 4.85 4.75 4.85 4.75 4.85 4.75 4.85 4.75 1 ±55 ±80 ±65 ±120 .7 1 150 200 700 20 30 20 30 20 30 70 120 Max. 5.15 5.25 5.15 5.25 5.15 5.25 5.15 5.25 5.15 5.25 5.15 5.25 5.15 5.25 5.15 5.25 Unit V V A dB Ω µV rms mV V mV mV mA V V Notes: RR IOS RO VON VDO VRLD VRLN IQ VRIT VRIN VLT VIN = 17 V + 1 V rms, IOUT = 5 mA, f = 1 kHz VIN = 17 V VIN = 17 V, IO = 5 mA, 10 Hz - 100 Hz VIN = 17 V, IOUT = 100 mA dc and 20 mA ac, fO = 120 Hz IOUT = 100 mA IOUT = 1 A VIN = 17 V, 50 mA ≤ IOUT ≤ 1 A 14 V ≤ VIN ≤ 26 V, IOUT = 5 mA VIN = 17 V, IOUT = 1 A VIN = 26 V, IOUT = 5 mA VIN = 14 V, IOUT = 5 mA VIN = 17 V, IOUT = 5 mA RO = 100 ,Ω t =20 ms RO = 100 Ω VO ≤ 13 V, RO = 100 ,Ω t = 20 ms VIN = 17 V, IOUT = 50 mA VIN = 13.6 V, IOUT = 50 mA VIN = 13.6 V, IOUT = 1 A VIN = 17 V, IOUT = 1 A VIN = 26 V, IOUT = 5 mA VIN = 14 V, IOUT = 5 mA VIN = 13.6 V, IOUT = 5 mA VIN = 17 V, IOUT = 5 mA Test Conditions 1. TA = 25°C. 2. Over full operating temperature range. Ripple Rejection Short Circuit Current Output Impedance Output Noise Voltage Dropout Voltage Load Regulation Line Regulation Reverse Polarity Input Voltage DC Reverse Polarity Input Voltage Transient Quiescent Current Maximum Line Transient Symbol VOUT 1 2 1 2 1, 2 1 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1, 2 1, 2 1, 2 Notes 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 52 46 1.2 1.0 -45 -15 40 Min. 11.64 11.40 11.64 11.40 11.64 11.40 11.64 11.40 11.64 11.40 11.64 11.40 11.64 11.40 11.64 11.40 1 1000 ±110 ±180 ±160 ±220 .7 1 150 200 20 30 20 30 20 30 70 120 Max. 12.36 12.60 12.36 12.60 12.36 12.60 12.36 12.60 12.36 12.60 12.36 12.60 12.36 12.60 12.36 12.60 -55°C ≤ TA ≤ 125°C, VIN = 17 V, IO = 1 A, COUT = 22 µF (unless otherwise specified). Notes 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Parameter Output Voltage Test Conditions Parameter Output Voltage Symbol VOUT ELECTRICAL CHARACTERISTICS, P/N OM2940-12SM (12 Volts) -55°C ≤ TA ≤ 125°C, VIN = 10 V, IO = 1 A, COUT = 22 µF (unless otherwise specified). 3.5 ELECTRICAL CHARACTERISTICS, P/N OM2940-5SM (5 Volts) V V A dB Ω µV rms mV V mV mV mA V V Unit OM2940-05SM - OM2940-15SM 3.5 - 59 VDO VON RO IOS RR Dropout Voltage Output Noise Voltage Output Impedance Short Circuit Current Ripple Rejection 1, 2 RO = 100 ,Ω t =20 ms 1 2 1 2 VIN = 20 V + 1 V rms, IOUT = 5 mA, f = 1 kHz 48 42 1 1, 2 ±125 ±350 ±200 ±400 .7 1 150 200 20 30 20 30 20 30 70 120 Max. 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 1000 1.2 1.0 -45 -15 40 Min. 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 1 1 2 1 2 1 2 1 2 VIN = 20 V VIN = 20 V, IO = 5 mA, 10 Hz - 100 Hz VIN = 20 V, IOUT = 100 mA ac and 20 mA dc, fO = 120 Hz IOUT = 100 mA IOUT = 1 A VIN = 20 V, 50 mA ≤ IOUT ≤ 1 A 17 V ≤ VIN ≤ 26 V, IOUT = 5 mA VIN = 20 V, IOUT = 1 A VIN = 26 V, IOUT = 5 mA VIN = 17 V, IOUT = 5 mA VIN = 20 V, IOUT = 5 mA 1, 2 1 2 1 2 1 2 1 2 1, 2 RO = 100 Ω Notes 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 VO ≤ 16 V, RO = 100 ,Ω t = 20 ms VIN = 20 V, IOUT = 50 mA VIN = 16.75 V, IOUT = 50 mA VIN = 16.75 V, IOUT = 1 A VIN = 20 V, IOUT = 1 A VIN = 26 V, IOUT = 5 mA VIN = 17 V, IOUT = 5 mA VIN = 16.75 V, IOUT = 5 mA VIN = 20 V, IOUT = 5 mA Test Conditions 1. TA = 25°C. 2. Over full operating temperature range. VRLD Load Regulation Notes: VRLN IQ VRIT VRIN VLT Symbol VOUT Line Regulation Reverse Polarity Input Voltage DC Reverse Polarity Input Voltage Transient Quiescent Current Maximum Line Transient Parameter Output Voltage -55°C ≤ TA ≤ 125°C, VIN = 20 V, IO = 1 A, COUT = 22 µF (unless otherwise specified). ELECTRICAL CHARACTERISTICS, P/N OM2940-15SM (15 Volts) V V A dB Ω µV rms mV V mV mV mA V V Unit TOP .450 SQ. .05 X 45° MAX. 3 PLCS. PIN 1 PIN 28 .02 x 45° SIDE 26 1 4 .300 4 PLCS. .009 R. BOTTOM 28 PLCS. .035 .090 MAX. MECHANICAL OUTLINE Pin 1, 15 thru 28: IN Pin 2, 3, 13, and 14: GND Pin 4 thru 12: OUT PIN CONNECTION 18 .305 SQ. .050 24 PLCS. 12 OM2940-05SM - OM2940-15SM 3.5 OM2940-05SM - OM2940-15SM TYPICAL APPLICATIONS 200 400 600 800 1000 Output Current (mA) 1A 500 mA 100 mA 80 120 0 40 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 0 40 80 120 Temperature (°C) 160 200 180 160 140 120 100 80 60 40 20 0 Output Voltage Deviation (V) 3V 0V -10 0 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 80 120 0 40 Temperature (°C) 50 Line Transient Response 3.5 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)