Wide VIN 150mA Synchronous Buck Regulator
Jump to Page Section:
Overview
Description
The ISL85412 is a 150mA synchronous buck regulator with an input range of 3. 5V to 40V. It provides an easy to use, high efficiency low BOM count solution for a variety of applications. The ISL85412 integrates both high-side and low-side NMOS FETs and features a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is desired. The part switches at a default frequency of 700kHz. By integrating both NMOS devices and providing internal configuration, minimal external components are required, reducing 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 will provide a very robust design for high voltage industrial applications as well as an efficient solution for battery powered applications. The part is available in a small Pb-free 3mmx3mm TDFN plastic package with an operation junction temperature range of -40°C to +125°C.
Features
- Wide input voltage range of 3.5V to 40V
- 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 switching frequency 700kHz
- Continuous output current up to 150mA
- Internal soft-start
- Minimal external components required
- Power-good and enable functions available
Applications
| Smart 1-Ph E-Meter | |
| Smart 3-Ph E-Meter | |
| Thermopile CO₂ Detector | |
|
Hi-Speed and Long Distance Power Line Communication Unit for AC Line/DC Line |
|
Torque Control Solution |
Applications
- Industrial control
- Medical devices
- Portable instrumentation
- Distributed power supplies
- Cloud infrastructure
Documentation
| Document title | Document type
|
Date Date | |
|---|---|---|---|
| PDF 1.31 MB | Datasheet | ||
| PDF 592 KB | Application Note | ||
| PDF 2.35 MB | Application Note | ||
| PDF 509 KB | Application Note | ||
| PDF 397 KB | Application Note | ||
| PDF 650 KB | Application Note | ||
| PDF 387 KB | Application Note | ||
| PDF 349 KB | Application Note | ||
| PDF 5.35 MB 日本語 | Brochure | ||
| PDF 1.55 MB | Manual - Development Tools | ||
| PDF 1.82 MB | Manual - Development Tools | ||
| PDF 169 KB | Product Change Notice | ||
| PDF 326 KB | Product Change Notice | ||
| PDF 1.07 MB | White Paper | ||
| PDF 468 KB | White Paper | ||
15 items
|
|||
Design & Development
Software & Tools
Boards & Kits
Boards & Kits
Synchronous Buck Demo Board with 3.6V to 40V Input Range, 3.3V 150mA Output
The ISL85412DEMO1Z demonstration kit is intended for use in point-of-load (POL) applications sourcing from 3.5V to 40V. The kit is used to demonstrate the performance...
Featured Documents:
Synchronous Buck EVB with 3.6V to 40V Input Range, 3.3V 150mA Output
The ISL85412EVAL1Z evaluation kit is intended for use in point-of-load applications sourcing from 3.5V to 40V. 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
ISL85412FRTZ Active Samples Available |
2033 Dec | TDFN | Tube | 2000 | Get Samples, |
| 2033 Dec | TDFN | Reel | 6000 |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product