Datenblatt-Suchmaschine für elektronische Bauteile |
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LM2940S-5.0 Datenblatt(PDF) 5 Page - Texas Instruments |
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LM2940S-5.0 Datenblatt(HTML) 5 Page - Texas Instruments |
5 / 37 page LM2940-N, LM2940C www.ti.com SNVS769J – MARCH 2000 – REVISED DECEMBER 2014 6.4 Thermal Information LM2940-N, LM2940C LM2940-N TO-220 DDPAK/TO-263 SOT-223 WSON THERMAL METRIC(1) UNIT (NDE) (KTT) (DCY) (NGN) 3 PINS 3 PINS 4 PINS 8 PINS RθJA Junction-to-ambient thermal resistance(2) 23.3 40.9 59.3 40.5 RθJC(top) Junction-to-case (top) thermal resistance 16.1 43.5 38.9 26.2 RθJB Junction-to-board thermal resistance 4.8 23.5 8.1 17.0 °C/W ψJT Junction-to-top characterization parameter 2.7 10.3 1.7 0.2 ψJB Junction-to-board characterization parameter 4.8 22.5 8.0 17.2 RθJC(bot) Junction-to-case (bottom) thermal resistance 1.1 0.8 n/a 3.2 (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. (2) Thermal information for the TO-220 package is for a package vertically mounted with a heat sink in the middle of a PCB which is compliant to the JEDEC HIGH-K 2s2p (JESD51-7). The heatsink-to-ambient thermal resistance, RƟSA, is 21.7°C/W. See Heatsinking TO-220 Package Parts for more information. 6.5 Electrical Characteristics (5 V and 8 V) Unless otherwise specified: VIN = VOUT + 5 V, IOUT = 1 A and COUT = 22 µF. MIN (minimum) and MAX (maximum) limits apply over the recommended operating temperature range, unless otherwise noted; typical limits apply for TA = TJ = 25°C. 5 V 8 V PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX Input voltage 5 mA ≤ IOUT ≤ 1 A 6.25 26 9.4 26 5 mA ≤ IOUT ≤ 1A 4.75 5 5.25 7.6 8 8.4 V Output voltage 5 mA ≤ IOUT ≤ 1A, TJ = 25°C 4.85 5 5.15 7.76 8 8.24 VOUT + 2 V ≤ VIN ≤ 26 V, IOUT = 5 mA Line regulation 20 50 20 80 mV TJ = 25°C 50 mA ≤ IOUT ≤ 1 A LM2940-N 35 80 55 130 Load regulation LM2940-N 35 50 55 80 mV 50 mA ≤ IOUT ≤ 1 A TJ = 25°C LM2940C 35 50 55 80 Output 100 mADC, 20 mArms, ƒOUT = 120 Hz 35 55 m Ω impedance VOUT + 2 V ≤ VIN ≤ 26 V, LM2940-N 10 20 10 20 IOUT = 5 mA VOUT + 2 V ≤ VIN ≤ 26 V, LM2940-N 10 15 10 15 IOUT = 5 mA Quiescent current LM2940C 10 15 mA TJ = 25°C VIN = VOUT + 5 V, IOUT = 1 A 30 60 30 60 VIN = VOUT + 5 V, IOUT = 1 A 30 45 30 45 TJ = 25°C Output noise 10 Hz to 100 kHz, IOUT = 5 mA 150 240 µVrms voltage ƒOUT = 120 Hz, 1 Vrms, IOUT = LM2940-N 54 72 48 66 100 mA Ripple rejection dB ƒOUT = 120 Hz, 1 Vrms, IOUT = LM2940-N 60 72 54 66 100 mA LM2940C 60 72 54 66 TJ = 25°C Long-term mV/1000 20 32 stability Hr IOUT = 1A 0.5 1 0.5 1 V IOUT = 1A, TJ = 25°C 0.5 0.8 0.5 0.8 Dropout voltage IOUT = 100 mA 110 200 110 200 mV IOUT = 100 mA, TJ = 25°C 110 150 110 150 Copyright © 2000–2014, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2940-N LM2940C |
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