Wide VIN 1.2A Synchronous Buck Regulator Demonstration Board (Buck)
The ISL854102DEMO2Z demo board uses the ISL854102 synchronous buck regulator in an isolated buck configuration. The board is configured for 19V to 40V input voltage...
Wide VIN 1.2A Synchronous Buck Regulator
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Overview
Description
The ISL854102 is a 1. 2A synchronous buck regulator with an input range of 3V to 40V. It provides an easy-to-use, high efficiency, low BOM count solution for a variety of applications. The ISL854102 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 a forced PWM mode is needed. The ISL854102 switches at a default frequency of 500kHz; however, it can also be programmed using an external resistor from 300kHz to 2MHz. The ISL854102 has the ability to use internal or external compensation. By integrating both NMOS devices and providing internal configuration options, minimal external components are required, which reduces the BOM count and design complexity. With a wide VIN range and reduced BOM, the ISL854102 provides an easy to implement design solution for a variety of applications while giving superior performance. The ISL854102 provides a very robust design for high-voltage industrial applications and an efficient solution for battery powered applications. The ISL854102 is available in a small Pb-free 4mmx3mm DFN plastic package with a full-range industrial temperature of -40°C to +125°C.
Features
- Wide input voltage range: 3V 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 fixed frequency (500kHz) or adjustable switching frequency (300kHz to 2MHz)
- Continuous output current up to 1.2A
- Internal or external soft-start
- Minimal external components required
- Power-good and enable functions available
Comparison
Applications
Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.54 MB | |
| Brochure | PDF 5.51 MB 日本語 | |
| Product Change Notice | PDF 326 KB | |
| Product Change Notice | PDF 226 KB | |
| White Paper | PDF 468 KB | |
| Application Note | PDF 592 KB | |
| 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 | |
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Design & Development
Boards & Kits
Boards & Kits
Wide VIN 1.2A Synchronous Buck Regulator Demonstration Board (Buck-Boost)
The ISL854102DEMO3Z board uses the ISL854102 in an isolated buck-boost configuration. The board demonstrates an inverted primary output and a non-inverted secondary...
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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.
Processing table
ISL854102FRZ Active Samples Available |
DFN | Tube | 1500 | Get Samples, |
ISL854102FRZ-T Active Samples Available |
DFN | Reel | 6000 | Get Samples, |
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Support
Renesas Samples
Select an orderable part number:
| Orderable Part ID | Sample |
|---|---|
| ISL854102FRZ | Availability |
| ISL854102FRZ-T | Availability |