EC3689-800KHz Syn. Converter With 5.5A Switches

EC3689-800KHz Syn. Converter With 5.5A Switches
General description
The EC3689 devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer battery. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 2.1A at 5.3V at a supply voltage down to 2.9V. The maximum peak current in the step-up switch is limited to a value of 5.5A. The EC3689 operates at 800KHz switching frequency and enters pulse-skip-mode (PSM) operation at light load currents to maintain high efficiency over the entire load current range. During shutdown, the load is completely disconnected from the battery.

Features
◆ Synchronous Step-up Converter with 2.1A Output Current From 2.9V Input

◆ Wide VIN Range From 2.9V to 5.5V

◆ Input Under-voltage Lockout Protection

◆ Fixed and Adjustable Output Voltage

◆ Built-in Output Over-voltage Protection

◆ Light-Load Pulse Skip Mode

◆ Load Disconnect During Shutdown

◆ Output Short Circuit Protection

◆ Thermal Shutdown Protection

◆ Available in a SOP8(Exposed PAD) Packages

Applications
◆ DC/DC Micro Modules

◆ Power Bank

◆ USB Charging Port(5V)

Pin Configurations

Ordering info

Typical Applications circuit


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飛虹高科股份有限公司

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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!