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SWD82 Datasheet Main Control Loop The LTC1779is a constantfrequency current mode switch- ing regulator. During normal operation, the internal P-channel power MOSFET is turned on each cycle when the oscillator sets the RS latch (RSl) and turned off when the current comparator (ICMP) resets the latch. The peak inductor current at which ICMP resets the RS latch is controlled by the voltage on the ITH/RUN pin, which is the output of the error amplifier EAMP. An external resistive divider connected between VOUT and ground allows the EAMP to receive an output feedbackvoltage VFB.When the SWD82 Price
SWD82 on stock
VCE tsat) = -0.3 V MAX. (@IC/IB = -1.5 A/-0.15 A) . Large Current IC(DC) = -3.0 A, lC (pulse) = -5.0 A . High Total Power Dissipation.: PT = 1.3W . Complementary t0 2SD1818 ABSOLUTE MAXIMUM RATINGS Maximum Temperatures Storage Temperature . . . . . . . . . . . . -55 to +150 0C Junction Temperature . ' . . . . . . . +150 0C Maximum Maximum Power Dissipations Total Power Dissipatian (Ta = 25 0C) . . . 1.3 W Total Power Dissipation (Tc = 25 0C) . . . 10 W Maximum Voltages and Currents (Ta = 25 0C) VCBO Collector to Base Voltage . . . . -60 V VCEO Collector to Emitter Voltage . . -60 V VEBO Emitter to Base Voltage . . . . . -7.0 V IC(DC) Collector Current . . ' . ' . . ' . -3.0 A IC(pulse) Collector Current .,. . . . . . . . -5.0 A IB(DC) Base Current . . . . . . . . . . . . -0.5 A 'PW<10 ps, Duty Cycle< 50 % |
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