MC34268 ON Semiconductor, MC34268 Datasheet
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MC34268
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MC34268 Summary of contents
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... MC34268 SCSI-2 Active Terminator Regulator The MC34268 is a medium current, low dropout positive voltage regulator specifically designed for use in SCSI–2 active termination circuits. This device offers the circuit designer an economical solution for precision voltage regulation, while keeping power losses to a minimum. The regulator consists of a 1.0 V dropout composite PNP/NPN pass transistor, current limiting, and thermal limiting. These devices are packaged in the 8– ...
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... Maximum Output Current ( 5.0 V) Bias Current ( 4. mA) Minimum Load Current to maintain Regulation ( Figure 1. Dropout Voltage versus Output Load Current 1.5 1.3 1.1 0.9 0.7 0.5 0 200 400 600 OUTPUT LOAD CURRENT (mA) MC34268 Symbol Value Unit Internally Limted 5.0 C C/W ...
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... Regulator Gnd The MC34268 requires an external 10 F capacitor with an ESR of less than 10 With economical electrolytic capacitors, cold temperature operation can pose a stability problem. As temperature decreases, the capacitance also decreases and the ESR increases, which could cause the circuit to oscillate. ...
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... –T– 0.13 (0.005 MC34268 PACKAGE DIMENSIONS SOP–8 D SUFFIX CASE 751–06 ISSUE T NOTES 0.10 DPAK DT SUFFIX CASE 369A–13 ISSUE Z SEATING PLANE http://onsemi.com 4 1 ...
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... PACKAGE DIMENSIONS 0.08 (0003) H http://onsemi.com MC34268 SOT–223 ST SUFFIX CASE 318E–04 ISSUE K NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. INCHES DIM MIN A 0.249 B 0.130 C 0.060 D 0.024 F 0.115 G 0.087 H 0.0008 J 0.009 ...
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... Notes MC34268 http://onsemi.com 6 ...
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... Notes MC34268 http://onsemi.com 7 ...
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... Email: ONlit–asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549 Phone: 81–3–5740–2745 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 8 MC34268/D ...