Description:The ISL8117 is a synchronous buck controller used to generate POL voltage rails and bias voltage rails for a wide variety of applications in industrial and general purpose segments. Its wide input and output voltage ranges make it suitable for telecommunication and after-market automotive applications. The ISL8117 uses the valley current modulation technique to bring hassle-free power supply design with a minimal number of components and complete protection from unwanted events. The ISL8117 offers programma
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1.2 mm
Supply Current-Max (Isup):
4 mA
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
2375 kHz
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Matte Tin (Sn) - annealed
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
ISL8117FVEZ-T Frequently Asked Questions (FAQs)
Renesas provides a recommended PCB layout in the ISL8117FVEZ-T evaluation board user manual, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure optimal heat dissipation.
The selection of input and output capacitors depends on the specific requirements of your application, including the input voltage range, output voltage, and desired ripple and noise performance. Renesas provides guidelines for capacitor selection in the datasheet and application notes, and recommends using low-ESR capacitors with a voltage rating that exceeds the maximum input voltage.
The ISL8117FVEZ-T is rated for operation from -40°C to +125°C, but the maximum ambient temperature range for reliable operation depends on the specific application and the thermal design of the system. Renesas recommends derating the device's power dissipation and junction temperature to ensure reliable operation over the desired temperature range.
The ISL8117FVEZ-T has a built-in overcurrent protection (OCP) feature that can be enabled by connecting the OCP pin to a resistor and capacitor network. Renesas provides guidelines for OCP implementation in the datasheet and application notes. For short-circuit protection, Renesas recommends using an external current sense resistor and a comparator or microcontroller to detect overcurrent conditions and shut down the device if necessary.
Renesas recommends a specific startup sequence to ensure proper operation of the ISL8117FVEZ-T, including powering up the input voltage, enabling the device, and then applying the output load. The recommended startup sequence is outlined in the datasheet and application notes.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
ISL8117FVEZ-T Overview
Use the download button to access the ISL8117FVEZ-T schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like ISL81,
or try a keyword search, such as Switching Regulator or Controllers
