EC3292B datasheet(3/14 Pages) E-CMOS

3 / 14 page

E-CMOS Corp. (www.ecmos.com.tw)

Page 3 of 8

5B04N-Rev.F001

18V/2A High Efficiency Synchronous Rectified

Step-Down DC/DC Converter

EC3292B

Absolute Maximum Ratings (Note 1)

Input Supply Voltage ……………………….……..… +21V

SW Voltage ……..................................... … - 1V to 22V

<10nS ................................................ (-5V to 25V)

EN Voltage …….………………......... - 0.3 to VIN+0.3V

ESD Classification …...………………………….. Class 2

Junction Temperature Range …....……. -40oC to 150°C

Storage Temperature Range ………..… -65oC to 150°C

Lead Temperature (Soldering10s) …………....... 260°C

Other Pins ……………………….………… - 0.3V to +6V

Boost Voltage ………....................................... Vsw+6V

Thermal Information (Note 3333、

、

、4444)

Maximum Power Dissipation(TA=+25°C ) …… 0.8W Thermal resistance( θJA) …………………125°C/W

Thermal resistance(θJC) ………………… 66°C/W

Recommended Operating Conditions(Note 2)

Input Voltage (VIN) ……..……………… +4.5V to +18V Operating Temperature Range .….-40°C to +85°C

Junction Temperature Range …....………

<+135°C

Note (1): Stress exceeding those listed “Absolute Maximum Ratings” may damage the device.

Note (2): The device is not guaranteed to function outside of the recommended operating conditions.

Note (3): Measured on JESD51-7, 4-Layer PCB.

Note (4): The maximum allowable power dissipation is a function of the maximum junction temperature TJ_MAX, the

junction to ambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power

dissipation at any ambient temperature is calculated by PD_MAX= (TJ_MAX-TA)/θJA. Exceeding the maximum allowable

power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent damage.

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