ISL85033

Overview

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.

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)

General purpose point of load DC/DC power conversion
Set-top boxes
FPGA power and STB power
DVD and HDD drives
LCD panels, TV power
Cable modems

Documentation

Design & Development

Software & Tools

Software title	Software type	Company

iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs. Downloads ISL85033 Current Share iSim:PE Model ISL85033 Dual iSim:PE Model	Simulator	Renesas
1 item

Software Downloads


Type	Title	Date
PCB Design Files	ISL85033CRSHEVAL1Z Design Files ZIP 797 KB	Jun 10, 2020
1 item

ISL85033-12VEVAL3Z

Evaluation

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Wide VIN Dual Standard Buck Regulator Evaluation Board In a Negative Output Voltage Configuration

The ISL85033 is a wide input range, dual standard buck converter that can be configured to provide a negative output voltage. The ISL85033-12VEVAL3Z evaluation board is...

Featured Documents:

ISL85033-12VEVAL3Z User Guide

ISL85033DUALEVAL1Z

Evaluation

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Wide VIN Dual Standard Buck Regulator Evaluation Board

The ISL85033DUALEVAL1Z evaluation kit is intended for use by individuals with requirements for point-of-load (POL) applications sourcing from 4.5V to 28V. The...

Featured Documents:

ISL85033DUALEVAL1Z User Guide

ISL85033EVAL2Z

Evaluation

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Wide VIN Dual Standard Buck Regulator with 3A/3A Continuous Output Current Evaluation Board

The ISL85033EVAL2Z evaluation kit is used to demonstrate the performance of the ISL85033 switching regulator IC. An input range of 4.5V to 28V and 3A output per channel...

Featured Documents:

ISL85033EVAL2Z (Short Form) User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Processing table

	PLP	Pkg. Type	Carrier Type	Moisture Sensitivity Level (MSL)	Price (USD) \| 1ku	Buy / Sample
(2) Active (0) Obsolete / NRND / LTB	Maximum The duration date of a product in the Product Longevity Program (PLP). Minimum The duration date of a product in the Product Longevity Program (PLP).	TQFN	Reel Tube	1	Maximum Price estimate for 1,000 units; pricing is subject to change. Minimum Price estimate for 1,000 units; pricing is subject to change.	Buy / Quote Get Samples
Part Number	Logical Operator	Logical Operator	Logical Operator	Logical Operator		Logical Operator
ISL85033IRTZ circleActive memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model Samples Available Buy Now	2033 Dec	TQFN	Tube	1	2.279	Get Samples, Buy / Quote
ISL85033IRTZ-T circleActive memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model Samples Available	2033 Dec	TQFN	Reel	1		Get Samples, Buy / Quote

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Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current

Overview

Documentation