TD1509

Datasheet 2A 150KHZ PWM Buck DC/DC Converter General Description The TD1509 is a of easy to use adjustable step-down (buck) switch-mode voltage regulator. The device is available in an adjustable output version. It is capable of driving a 2A load with excellent line and load regulation. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator. The output voltage is guaranteed to ±3% tolerance under specified input voltage and output load conditions. The oscillator frequency is guaranteed to ±15%. External shutdown is included, featuring typically 50 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. The TD1509 is available in SOP8 DIP8 package. TD1509 Features 3,3V,5V and Adjustable output versions Output adjustable from 1.23v to 43V Fixed 150KHz frequency internal oscillator Guaranteed 2A output load current Input voltage range up to 45V Low power standby mode, IQ typically 50 µA TTL shutdown capability Excellent line and load regulation High efficiency Thermal shutdown and current limit protection Available in advantaged SOP8 DIP8 package Applications Simple High-efficiency step-down regulator On-card switching regulators Positive to negative converter LCD monitor and LCD TV DVD reco...