LM7905XE

LM7905XE MECHANICAL DATA Dimensions in mm (inches) 1.5 AMP NEGATIVE VOLTAGE REGULATOR FEATURES 1.27 (0.050) 1.07 (0.040) 9.14 (0.360) 8.64 (0.340) 12 13 14 15 16 1.39 (0.055) 1.02 (0.040) ≈ 2.16 (0.085) • OUTPUT VOLTAGE OF -5V • THERMAL OVERLOAD PROTECTION • SHORT CIRCUIT PROTECTION3 • OUTPUT TRANSISTOR SOA PROTECTION 11 7.62 (0.300) 7.12 (0.280) 17 18 1 2 0.76 (0.030) 0.51 (0.020) 10 9 8 7 6 5 4 3 1.65 (0.065) 1.40 (0.055) 0.33 (0.013) Rad. 0.08 (0.003) 1.39 (0.055) 1.15 (0.045) 0.43 (0.017) 0.18 (0.007 Rad. LCC4 CERAMIC SURFACE MOUNT Pins 4,5 Pins 6,7,8,9,10,11,12,13 Pins 15,16,17,18,1,2 – VOUT – GND – VIN ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) VI PD Tj Tstg DC Input Voltage Power Dissipation Operating Junction Temperature Range Storage Temperature 35V Internally limited –55 to 150°C –65 to 150°C Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6044 Issue: 2 LM7905XE Parameter VO Output Voltage Test Conditions IO = 500mA IO = 5mA to IMAX PD ≤ PMAX IO = 0.5 IMAX VIN = -10V VIN = -7.5V to -20V TJ = -55 to 150°C VIN = -7V to -25V VIN = -7.5V to -20V TJ = -55 to 150°C VIN = -8V to -12V IO ≤ IMAX TJ = -55 to 150°C IO = 5mA to 1.5A IO = 5mA to IMAX TJ = -55 to 150°C Min. -4.9 -4.8 LM7905XE Typ. Max. -5 -5.1 -5.2 3 3 1 2 25 25 1 25 50 25 50 100 100 1.9 2 0.4 0.5 Units V ∆VO Line Regulation mV ∆VO Load Regulation VIN = -10V IO ≤ 0.5 IMAX VIN = -10V mV IQ ∆IQ VN ∆VIN ∆VO Quiescent Current TJ = -55 to 150°C TJ = -55 to 150°C 1 0.2 0.2 100 mA Quiescent Current IO = 5mA to IMAX Change Output Noise Voltage VIN = -10V f = 10Hz to 100kHz VIN = -10V f = 120Hz Ripple Rejection VIN = -8V to -18V IO = IMAX IO ≤ IMAX IO ≤ 0.5 IMAX TJ = -55 to 150°C Dropout Voltage Output Resistance f = 1 kHz Short Circuit Current Peak Output Current Average VIN = -10V IO = 5mA IO ≤ IMAX -7.3 VIN = -35V 54 54 mA µV dB 1.4 5 0.6 1.2 V mΩ RO Isc Ipk A 2.4 3.3 mV °C V Temperature Coefficient of VO Input Voltage required to maintain line regulation 0.2 1) All characteristics are measured with a capacitor across the input of 0.22µF and a capacitor across the output of 0.1µF. 2) All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tp ≤ 10ms, δ ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately. 3) External current limiting circuitry may be required in order to maintain safe area of operation. Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6044 Issue: 2 LM7905XE APPLICATIONS INFORMATION I N PU T VIN GND C1 * 2. 2µF T AN T . VOU T OUTPUT I N PU T VIN GND VOU T OUTPUT R1 C2 1 µF TANT. I N PU T VIN GND C1 2. 2µF T AN T . VOU T C2 1 µF T AN T . R1 C2 * * 1 µF TANT. C1 2. 2µF T AN T . O U TPU T IOUT R2 Fixed Output Regulator * Required if the regulator is located far from the power supply. ** Required for stability. 25µF electrolytic may be substituted. Adjustable Output Regulator VOUT ≈ VREG (R1+R2) R1 Current Regulator IOUT = VREG + IQ R1 Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6044 Issue: 2