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| LM237_07 |
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3 page 
www.ti.com Recommended Operating Conditions Electrical Characteristics 3-TERMINAL ADJUSTABLE REGULATORS SLVS047J – NOVEMBER 1981 – REVISED MAY 2007 MIN MAX UNIT |VI – VO| ≤ 40 V, P ≤ 15 W 10 1500 IO Output current mA |VI – VO| ≤ 10 V, P ≤ 15 W 6 1500 LM237 –25 150 TJ Operating virtual junction temperature °C LM337 0 125 over recommended ranges of operating virtual junction temperature (unless otherwise noted) LM237 LM337 PARAMETER TEST CONDITIONS(1) UNIT MIN TYP MAX MIN TYP MAX TJ = 25°C 0.01 0.02 0.01 0.04 Input regulation(2) VI – VO = –3 V to –40 V %/V TJ = MIN to MAX 0.02 0.05 0.02 0.07 VO = –10 V, f = 120 Hz 60 60 Ripple rejection dB VO = –10 V, f = 120 Hz, CADJ = 10 µF 66 77 66 77 |VO| ≤ 5 V 25 50 mV IO = 10 mA to 1.5 A, TJ = 25°C |VO| ≥ 5 V 0.3 0.5 0.3 1 % Output regulation |VO| ≤ 5 V 50 70 mV IO = 10 mA to 1.5 A |VO| ≥ 5 V 1 1.5 % Output-voltage change TJ = MIN to MAX 0.6 0.6 % with temperature Output-voltage After 1000 h at TJ = MAX and VI – VO = –40 V 0.3 1 0.3 1 % long-term drift Output noise voltage f = 10 Hz to 10 kHz, TJ = 25°C 0.003 0.003 % |VI – VO| ≤ 40 V 2.5 5 2.5 10 Minimum output current to mA maintain regulation |VI – VO| ≤ 10 V 1.2 3 1.5 6 |VI – VO| ≤ 15 V 1.5 2.2 1.5 2.2 Peak output current A |VI – VO| ≤ 40 V, TJ = 25°C 0.24 0.4 0.15 0.4 ADJUSTMENT current 65 100 65 100 µA Change in ADJUSTMENT VI – VO = –2.5 V to –40 V, IO = 10 mA to MAX, 2 5 2 5 µA current TJ = 25°C Reference voltage VI – VO = –3 V to –40 V, TJ = 25°C –1.225 –1.25 –1.275 –1.213 –1.25 –1.287 (OUTPUT to IO = 10 mA to 1.5 A, V TJ = MIN to MAX –1.2 –1.25 –1.3 –1.2 –1.25 –1.3 ADJUSTMENT) P ≤ rated dissipation Thermal regulation Initial TJ = 25°C, 10-ms pulse 0.002 0.02 0.003 0.04 %/W (1) Unless otherwise noted, the following test conditions apply: |VI – VO| = 5 V and IO = 0.5 A. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. All characteristics are measured with a 0.1- µF capacitor across the input and a 1- µF capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. (2) Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input. 3 |
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