Wide VIN 300mA Synchronous Buck Regulator
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Overview
Description
The ISL85413 is a 300mA 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 ISL85413 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 300mA
- Internal soft-start
- Minimal external components required
- Power-good and enable functions available Applications
Applications
Applications
- Industrial control
- Medical devices
- Portable instrumentation
- Distributed power supplies
- Cloud infrastructure
Documentation
| Document title | Document type
|
Date Date | |
|---|---|---|---|
| PDF 1.36 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 169 KB | Product Change Notice | ||
| PDF 1.07 MB | White Paper | ||
| PDF 468 KB | White Paper | ||
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Design & Development
Boards & Kits
Boards & Kits
Synchronous Buck Demo Board with 3.6V to 40V Input Range, 3.3V 300mA Output
The ISL85413DEMO1Z 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 Demo Board with 9V to 40V Input Range, 5V 150mA Output and -5V 150 mA Secondary Output
The ISL85413DEMO3Z demonstration board is used to demonstrate the performance of the ISL85413 wide VIN low quiescent current, high-efficiency, synchronous buck...
Featured Documents:
Synchronous Buck EVB with 3.6V to 40V Input Range, 3.3V 300mA Output
The ISL85413EVAL1Z 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:
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
| 2033 Dec | TDFN | Tube | 3000 | ||
ISL85413FRTZ-T Active Samples Available |
2033 Dec | TDFN | Reel | 6000 | Get Samples, |
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