Wide VIN 500mA Synchronous Buck Regulator
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Overview
Description
The ISL85415 is a 500mA synchronous buck regulator with an input range of 3V to 36V. The device provides an easy-to-use high-efficiency, low BOM-count solution for a variety of applications. The ISL85415 integrates both high-side and low-side NMOS FET's and features a PFM mode for improved efficiency at light loads. The feature can be disabled if forced PWM mode is desired. The device switches at a default frequency of 500kHz, but can also be programmed using an external resistor from 300kHz to 2MHz. The ISL85415 has the ability to use internal or external compensation. By integrating both NMOS devices and providing internal configuration options, minimal external components are required, reducing both the BOM count and complexity of design. With the wide VIN range and reduced BOM the part provides an easy to implement design solution for a variety of applications while giving superior performance. It provides a very robust design for high-voltage Industrial applications and delivers an efficient solution for battery powered applications. The ISL85415 is available in a small Pb-free 4mmx3mm DFN plastic package with an operation temperature range of -40°C to +125°C.
Features
- Wide input voltage range 3V to 36V
- Synchronous operation for high efficiency
- No compensation required
- Integrated High-side and Low-side NMOS devices
- Selectable PFM or forced PWM mode at light loads
- Internal fixed (500kHz) or adjustable switching frequency 300kHz to 2MHz
- Continuous output current up to 500mA
- Internal or external soft-start
- Minimal external components required
- Power-good and enable functions available
Applications
Applications
- Industrial control
- Medical devices
- Portable instrumentation
- Distributed power supplies
- Cloud infrastructure
Documentation
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Datasheet
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PDF592 KB
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Application Note
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PDF2.35 MB
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Application Note
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PDF509 KB
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Application Note
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PDF397 KB
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Application Note
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PDF650 KB
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Application Note
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PDF387 KB
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Application Note
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PDF349 KB
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Application Note
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Brochure
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PDF1.55 MB
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Manual - Development Tools
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PDF1.82 MB
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Manual - Development Tools
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PDF109 KB
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Product Change Notice
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PDF1.07 MB
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White Paper
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PDF468 KB
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White Paper
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White Paper
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Design & Development
Software & Tools
Software & Tools
| iSim:PE Offline Simulation TooliSim 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: | Simulator | Renesas |
Boards & Kits
Boards & Kits
Synchronous Buck Demo Board with 3.6V to 36V Input Range, 3.3V 500mA Output
The ISL85415DEMO1Z board is intended for use in point-of-load applications sourcing from 3V to 36V. The board is used to demonstrate the performance of the ISL85415...
Featured Documents:
Sync Buck Demo Board with 3.6V to 36V Vin Range, 3.3V 300mA Output and 3.3V 300mA Secondary Output
The ISL85415DEMO2Z board is intended for use in point-of-load applications sourcing from 3V to 36V. The board is used to demonstrate the performance of the ISL85415...
Featured Documents:
Synchronous Buck EVB with 3.6V to 36V Input Range, 3.3V 500mA Output
The ISL85415EVAL1Z evaluation kit is intended for use for point-of-load applications sourcing from 3V to 36V. The kit is used to demonstrate the performance of the
Featured Documents:
Synchronous Buck-Boost EVB with 3V to 31V Input Range, -5V 500mA Negative Output
The ISL85415EVAL2Z evaluation kit is intended for use for point-of-load applications sourcing from 3V to 36V. The kit is used to demonstrate the performance of the
Featured Documents:
Power Supply Reference Demo Board for the Xilinx Zynq Ultrascale+™ MPSoC
The ISLUSPLUS-UC1DEMO1Z and ISLUSPLUS-UC2DEMO1Z designs provide a power supply reference solution for the Xilinx Zynq UltraScale+™ MPSoC.
The power supply rail...
Featured Documents:
Power Supply Reference Demo Board for the Xilinx Zynq Ultrascale+™ MPSoC
The ISLUSPLUS-UC1DEMO1Z and ISLUSPLUS-UC2DEMO1Z designs provide a power supply reference solution for the Xilinx Zynq UltraScale+™ MPSoC.
The power supply rail...
Featured Documents:
Models
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.
Product Options
Processing table
| DFN | Tube | 1500 | ||
ISL85415FRZ-T Active Samples Available |
DFN | Reel | 6000 | Get Samples, |
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