Description:Support is limited to customers who have already adopted these products.The ISL78205 is a synchronous buck controller with a 90mΩ high side MOSFET and low side driver integrated. The ISL78205 supports a wide input voltage range from 3V to 40V. Regarding the output current capability under thermal considerations, the ISL78205 can typically support a continuous load of 2. 5A under such conditions of 5V VOUT, VIN range of 8V to 30V, 500kHz, +85°C ambient temperature with still air. For any specific application
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Seated Height-Max:
1.2 mm
Surface Mount:
YES
Switcher Configuration:
BUCK-BOOST
Switching Frequency-Max:
500 kHz
Temperature Grade:
INDUSTRIAL
Terminal Finish:
MATTE TIN
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Width:
4.4 mm
ISL78205AVEZ Frequently Asked Questions (FAQs)
Renesas provides a recommended PCB layout in the ISL78205AVEZ evaluation board user manual, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
The selection of input and output capacitors depends on the specific requirements of the application, including the input voltage range, output voltage, and ripple current. Renesas provides guidelines for capacitor selection in the datasheet, and engineers can also consult with capacitor manufacturers for specific recommendations.
While the datasheet specifies an operating temperature range of -40°C to +125°C, the maximum ambient temperature for reliable operation depends on the specific application and cooling conditions. Engineers should consult with Renesas or perform thermal analysis to determine the maximum ambient temperature for their specific design.
The ISL78205AVEZ has built-in overcurrent protection and fault detection features, including overcurrent limit, undervoltage lockout, and thermal shutdown. Engineers can implement these features by connecting the relevant pins to external components, such as resistors and capacitors, and programming the device according to the datasheet and application notes.
The recommended startup sequence for the ISL78205AVEZ involves applying the input voltage, followed by the enable signal, and then the output voltage. This sequence ensures that the device starts up correctly and avoids any potential latch-up or damage.
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Manufacturer Collaborated
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System Verified
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Sponsored
ISL78205AVEZ Overview
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