Overview
Description
The ISL85033 is a dual standard buck regulator capable of 3A per channel continuous output current. With an input range of 4. 5V to 28V, it provides a high frequency power solution for a variety of point of load applications. The PWM controller in the ISL85033 drives an internal switching N-Channel power MOSFET and requires an external Schottky diode to generate the output voltage. The integrated power switch is optimized for excellent thermal performance up to 3A of output current. The PWM regulator switches at a default frequency of 500kHz and it can be user programmed or synchronized from 300kHz to 2MHz. The ISL85033 utilizes peak current mode control to provide flexibility in component selection and minimize solution size. The protection features include overcurrent, UVLO and thermal overload protection. The ISL85033 is available in a small 4mmx4mm Thin Quad Flat No-Lead (TQFN) Pb-free package.
Features
- Wide input voltage range from 4.5V to 28V
- Adjustable output voltage with continuous output current up to 3A
- Current mode control
- Adjustable switching frequency from 300kHz to 2MHz
- Independent power-good detection
- Selectable in-phase or out-of-phase PWM operation
- Independent, sequential, ratiometric or absolute tracking between outputs
- Internal 2ms soft-start time
- Overcurrent/short circuit protection, thermal overload protection, UVLO
- Boot undervoltage detection
- Pb-free (RoHS compliant)
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
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Support Communities
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POWER CIRCUITS IC'S ISL85033, ISL80030FRZ-T
POWER CIRCUITS 1. IC'S ISL85033 This IC we were using 12V input and converting into the 5V, 3.3V. 2. ISL80030FRZ-T this Ic for 5V input from IC ISL85033 into 1.8V. these IC's we were using for our own design.kindly help how much PCB trace ...
Jul 25, 2020
FAQs
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How do you select or calculate the bootstrap capacitor for the ISL85033?
Question: How do you select or calculate the bootstrap capacitor, or is 10nF your recommended value? Answer: 10nF (0.01uF) is our recommended value. The bootstrap capacitor provides the necessary charge to turn on the internal N-Channel MOSFET. On our evaluation boards we use the following: CAP, SMD, 0603 ...
Jan 1, 1970