MB3769A Datasheet | Fujitsu Semiconductor Limited

FUJITSU SEMICONDUCTOR DATA SHEET DS04-27202-3E ASSP SWITCHING REGULATOR CONTROLLER The Fujitsu MB3769A is a pulse-width-modulation controller which is applied to fixed frequency pulse modulation technique. The MB3769A contains wide band width Op-Amp and high speed parator to construct very high speed switching regulator system up to 700 k Hz. Output is suitable for power MOS FET drive owing to adoption of totem pole output. The MB3769A provides stand-by mode at low voltage power supply when it is applied in primary control system. - High frequency oscillator (f = 1 to 700 k Hz) - On-chip wide band frequency operation amplifier (BW = 8 MHz typ.) - On-chip high speed parator (td = 120 ns typ.) - Internal reference voltage generator provides a stable reference supply (5 V ± 2%) PLASTIC DIP 16-PIN (DIP-16P-M04) - Low power dissipation (1.5 m A typ. at standby mode, 8 m A typ. at operating mode) - Output current ± 100 m A (± 600 m A at peak) - High speed switching operation (tr = 60 ns, tf = 30 ns, CL = 1000 p F typ.) - Adjustable Dead-time - On-chip soft start and quick shut down functions - Internal circuitry prohibits double pulse at dynamic current limit operation - Under voltage lock out function (OFF to ON: 10 V typ. ON to OFF: 8 V typ.) - On-chip output shut down circuit with latch function at over voltage - On-chip Zener diode (15 V) This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit. PLASTIC FPT 16-PIN (FPT-16P-M06) MB3769A s PIN ASSIGNMENT (TOP VIEW) +IN (OP) -IN (OP) FB DTC CT RT GND VL 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 +IN (C) -IN (C) VREF OVP VCC VZ VH OUT...