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LM317BD2T 数据表(PDF) 2 Page - ON Semiconductor |
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LM317BD2T 数据表(HTML) 2 Page - ON Semiconductor |
2 / 12 page LM317 http://onsemi.com 2 MAXIMUM RATINGS Rating Symbol Value Unit Input–Output Voltage Differential VI–VO 40 Vdc Power Dissipation Case 221A TA = +25°C PD Internally Limited W Thermal Resistance, Junction–to–Ambient θJA 65 °C/W Thermal Resistance, Junction–to–Case θJC 5.0 °C/W Case 936 (D2PAK) TA = +25°C PD Internally Limited W Thermal Resistance, Junction–to–Ambient θJA 70 °C/W Thermal Resistance, Junction–to–Case θJC 5.0 °C/W Operating Junction Temperature Range TJ –40 to +125 °C Storage Temperature Range Tstg –65 to +150 °C ELECTRICAL CHARACTERISTICS (VI–VO = 5.0 V; IO = 0.5 A for D2T and T packages; TJ = Tlow to Thigh [Note 1]; Imax and Pmax [Note 2]; unless otherwise noted.) Characteristics Figure Symbol Min Typ Max Unit Line Regulation (Note 3), TA = +25°C, 3.0 V ≤ VI–VO ≤ 40 V 1 Regline – 0.01 0.04 %/V Load Regulation (Note 3), TA = +25°C, 10 mA ≤ IO ≤ Imax VO ≤ 5.0 V VO ≥ 5.0 V 2 Regload – – 5.0 0.1 25 0.5 mV % VO Thermal Regulation, TA = +25°C (Note 6), 20 ms Pulse Regtherm – 0.03 0.07 % VO/W Adjustment Pin Current 3 IAdj – 50 100 µA Adjustment Pin Current Change, 2.5 V ≤ VI–VO ≤ 40 V, 10 mA ≤ IL ≤ Imax, PD ≤ Pmax 1, 2 ∆IAdj – 0.2 5.0 µA Reference Voltage, 3.0 V ≤ VI–VO ≤ 40 V, 10 mA ≤ IO ≤ Imax, PD ≤ Pmax 3 Vref 1.2 1.25 1.3 V Line Regulation (Note 3), 3.0 V ≤ VI–VO ≤ 40 V 1 Regline – 0.02 0.07 % V Load Regulation (Note 3), 10 mA ≤ IO ≤ Imax VO ≤ 5.0 V VO ≥ 5.0 V 2 Regload – – 20 0.3 70 1.5 mV % VO Temperature Stability (Tlow ≤ TJ ≤ Thigh) 3 TS – 0.7 – % VO Minimum Load Current to Maintain Regulation (VI–VO = 40 V) 3 ILmin – 3.5 10 mA Maximum Output Current VI–VO ≤ 15 V, PD ≤ Pmax, T Package VI–VO = 40 V, PD ≤ Pmax, TA = +25°C, T Package 3 Imax 1.5 0.15 2.2 0.4 – – A RMS Noise, % of VO, TA = +25°C, 10 Hz ≤ f ≤ 10 kHz N – 0.003 – % VO Ripple Rejection, VO = 10 V, f = 120 Hz (Note 4) Without CAdj CAdj = 10 µF 4 RR – 66 65 80 – – dB Long–Term Stability, TJ = Thigh (Note 5), TA = +25°C for Endpoint Measurements 3 S – 0.3 1.0 %/1.0 k Hrs. Thermal Resistance Junction to Case, T Package RθJC – 5.0 – °C/W NOTES: 1. Tlow to Thigh = 0° to +125°C, for LM317T, D2T. Tlow to Thigh = –40° to +125°C, for LM317BT, BD2T. 2. Imax = 1.5 A, Pmax = 20 W 3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 4. CAdj, when used, is connected between the adjustment pin and ground. 5. Since Long–Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability from lot to lot. 6. Power dissipation within an IC voltage regulator produces a temperature gradient on the die, affecting individual IC components on the die. These effects can be minimized by proper integrated circuit design and layout techniques. Thermal Regulation is the effect of these temperature gradients on the output voltage and is expressed in percentage of output change per watt of power change in a specified time. |
类似零件编号 - LM317BD2T |
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类似说明 - LM317BD2T |
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