TS3404

www.DataSheet4U.com TS3404 PWM Buck Controller Pin assignment: 1. Out 2. Vcc 3. Comp. 4. FB 5. SCP 6. SS 7. CT 8. Gnd Supply Voltage Range 3.6V to 27V Output Driving Current 200mA Oscillator Frequency up to 300KHz General Description The TS3404 integrates Pulse Width Modulation (PWM) control circuit into a single chip, and makes simple work out of implementing a complete control and protection scheme for a DC-DC step-down converter. The TS3404 provides simple feedback loop compensation, 1.25V reference output, error amplifier, adjustable oscillator, soft start, under voltage lock out (UVLO), short circuit protection(SCP) circuitry, and push pull output circuit. The TS3404 is design for adjustable switching frequency by trimming time capacitor (CT), during low supply voltage situation, the under voltage lock out (UVLO) makes sure that the output are off until the internal circuit operates normally. The TS3404 is offered in DIP-8 and SOP-8 package. Features — — — — — — PWM buck control circuit Operating voltage can be up to 27V Under voltage lock out (UVLO) protection Soft start (SS) circuit Short circuit Protection (SCP) Variable oscillator frequency 300KHz (max) 1.25V voltage reference Output Pin Descriptions Name Output Vcc Comp. FB SCP SS CT Gnd PWM Output Supply Voltage Feedback Loop Compensation Voltage Feedback Short Circuit Protection Soft Start Timing Capacitor Ground Description DataShee DataSheet4U.com — Applications — — — LCD Monitor xD-ROM, xDSL product D...