TD1501 3A 150KHz 45V PWM Buck DC/DC Converter
文章来源：深圳市瑞合特科技有限公司 发布时间：2014-05-16 点击数：
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The TD1501 is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. These devices are available in fixed output voltage of 3.3V, 5V, and an adjustable output version. Both versions are capable of driving a 3A 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 80 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 TD1501 is available in TO-220B-5L TO220-5L and TO-263-5L packages. |
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Features * 3.3V, 5V and adjustable output versions * Output adjustable from 1.23v to 43V * Fixed 150KHz frequency internal oscillator * Guaranteed 3A output load current * Input voltage range up to 45V * Low power standby mode, IQ typically 80 µA * TTL shutdown capability * Excellent line and load regulation * Requires only 4 external components * High efficiency * Thermal shutdown and current limit protection * Available in TO-220B/TO220 and TO-263 packages |
Applications * Simple High-efficiency step-down regulator * On-card switching regulators * Positive to negative converter * LCD monitor and LCD TV * DVD recorder and PDP TV * Battery charger * Step-down to 3.3V for microprocessors |