POWER SUPPLY CIRCUITS (continued) Voltage Regulators (continued) Switching Regulators Used as control circuit in PWM, push-pull, bridge and series type switchmode supplies. the devices include the reference, oscillator, pulse-width modulator, phase splitter and output sections. Frequency and duty cycle are independently adjustable. lo Voc fo mA Volts kHz Ta Max Min Max Min Max Device Suffix c Case 40 1 30 2.0 100 MC3420 P Oto +70 648 L 620 MC3520 L 55 to + 125 620 250 7.0 40 1.0 300 MC34060 P Oto +70 646 L 632 MC35060 L 55 to +125 632 200 7.0 40 1.0 300 MC34060A AD Oto +70 751A P 646 MC33060A P 40 to +85 646 250 7.0 40 10 300 TL494 CN Oto +70 648 CJ 620 IN 25 to +85 648 IJ 620 MJ 56 to +125 620 250 > 40 1.0 400 TL594 CN Oto +70 648 250 > 40 1.0 300 TL495** CN Oto +70 707 CJ 726 IN 25 to +85 707 lJ 25 to +85 726 SG3525A N TO to +125 648 J 620 + 400 8 40 0.1 400 SG2525A N t25 to + 150 648 J 620 SG1525A J t55 to +150 620 $G3527A N tO to +125 648 J 620 + 400 8 40 0.1 400 SG2527A N t 25 to +150 648 J 620 SG1527A J +55 to +150 620 $G3526 N TO to +125 707 J 726 +200 8 40 0.001 400 $G2526 N t40 to +150 707 J 726 $G1526 J T55 to + 150 726 *Single output device tJunction Temperature Range **internal 39 V zener for 40 volt operation MOTOROLA EUROPEAN MASTER SELECTION GUIDE 2-93