EC9301H – 3A 150KHz PWM Buck DC/DC Converter

EC9301H – 3A 150KHz PWM Buck DC/DC Converter
General description
The EC9301H 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 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 EC9301H is available in TO263-5L packages.

Features
l 5V and adjustable output Versions

l Output adjustable from 1.23V to 57V

l Fixed 150KHz frequency internal oscillator

l Guaranteed 3A output load current

l Input voltage range up to 60V

l Low power standby mode, IQ typically 80 μA

l TTL shutdown capability

l Excellent line and load regulation

l Requires only 4 external components

l High efficiency

l Thermal shutdown and current limit protection

l Available in TO263 packages

Applications
l Simple High-efficiency step-down regulator

l On-card switching regulators

l Positive to negative converter

l LCD monitor and LCD TV

l DVD recorder and PDP TV

l Battery charger

l Step-down to 3.3V for microprocessors

Pin Configurations

Ordering info

Typical Applications circuit


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於民國76年成立,79年進入科學園區,為Fabless 的IC設計公司,從事IC之設計研發。 以CMOS IC及模組設計為主,並獲多項關鍵技術專利。

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規格是死的,設計是活的
我們提供具有靈活彈性的客製化IC與模組設計

告訴我們你想做的產品項目吧!