{"id":383,"date":"2021-12-16T01:36:00","date_gmt":"2021-12-15T17:36:00","guid":{"rendered":"https:\/\/ecmos2.liho.work\/?p=383"},"modified":"2024-09-10T13:11:44","modified_gmt":"2024-09-10T05:11:44","slug":"ec3689","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/cn\/dc-converter-boost\/ec3689\/","title":{"rendered":"EC3689\uff5c800KHz Syn. Converter With 5.5A Switches"},"content":{"rendered":"\n
\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n
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General description<\/h3>\n\n\n\n

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 nternally 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.<\/p>\n\n\n\n

Features<\/h3>\n\n\n\n

\u25c6 Synchronous Step-up Converter with 2.1A Output Current From 2.9V Input
\u25c6 Input Under-voltage Lockout Protection
\u25c6 Fixed and Adjustable Output Voltage
\u25c6 Built-in Output Over-voltage Protection
\u25c6 Light-Load Pulse Skip Mode
\u25c6 Load Disconnect During Shutdown
\u25c6 Output Short Circuit Protection
\u25c6 Thermal Shutdown Protection
\u25c6 Available in a SOP8(Exposed PAD) Packages<\/p>\n\n\n\n

Applications<\/h3>\n\n\n\n

\u25c6 DC\/DC Micro Modules
\u25c6 Power Bank
\u25c6 USB Charging Port(5V)<\/p>\n\n\n\n