MB3788

www.DataSheet4U.com FUJITSU SEMICONDUCTOR DATA SHEET DS04-27209-1E ASSP SWITCHING REGULATOR CONTROLLER MB3788 s DESCRIPTION 24-PIN PLASTIC SSOP The MB3788 is a dual-channel PWM-type switching regulator controller; it incorporates a reference voltage. The MB3788 has a PWM circuit and an output circuit as well as a reference voltage power supply with a voltage accuracy of ±1%. The maximum operating frequency is 1 MHz. It is designed for a voltage-drop output switching regulator suitable for a logic power supply or speed control of a DC motor. The MB3788 is compatible with all master ICs producing triangular waves, sawtooth waves and sine waves with an amplitude of 1.3 to 1.9 V. It can be used in high-performance portable equipment such as a video camcorder or notebook personal computer (word processor). DataShee DataSheet4U.com s FEATURES - Wide operating power supply voltage range: 3.6 to 18 V - Low power dissipation - Operating: 1.9 mA (standard) Standby: 10 µA max. - High-frequency operation: 100 kHz to 1 MHz - On-chip timer and latch-type short-circuit detection circuit - Wide error amplifier input voltage range: -0.2 V to VCC - 1.8 V - On-chip high-accuracy reference voltage circuit: 2.50 V ±1% - Output circuit PNP transistor drive output pin: Push-pull type ON/OFF current values set independently - On-chip standby function and output control function - High-density packaging: SSOP-24P This device contains circuitry to protect the inputs against damage due to hi...