Key Features
- Fully-encapsulated dual step-down switching power supply
- Up to 100W output from a 17mmx17mm square PCB footprint
- Dual 15A or single 30A output
- Up to 95% conversion efficiency
- 4.5V to 20V input voltage range
- 0.6V to 7.5V output voltage range
- 1.5% output voltage accuracy with differential remote sensing
- Up to six modules may be paralleled to support 180A output current
- Output overvoltage, overcurrent and over-temperature protection
- Full power operation without heat sinks or fans
- QFN package with exposed leads permits easy probing and visual solder inspection
Description
The ISL8225M is a fully-encapsulated step-down switching power supply that can deliver up to 100W output power from a small 17mm square PCB footprint. The two 15A outputs may be used independently or combined to deliver a single 30A output. Designing a high-performance board mounted power supply has never been simpler -- only a few external components are needed to create a very dense and reliable power solution.
Automatic current sharing and phase interleaving allow up to six modules to be paralleled for 180A output capability. 1.5% output voltage accuracy, differential remote voltage sensing and fast transient response create a very high-performance power system. Built-in output overvoltage, overcurrent and over-temperature protection enhance system reliability.
The ISL8225M is available in a thermally-enhanced QFN package. Excellent efficiency and low thermal resistance permit full power operation without heat sinks or fans. In addition, the QFN package with external leads permits easy probing and visual solder inspection.
Applications
- Computing, networking and telecom infrastructure equipment
- Industrial and medical equipment
- General purpose point-of-load (POL) power
Alternatives
If you need high voltage or more headroom, you can move to the ISL8240M dual 20A/single 40A step-down power module, which is pin-to-pin compatible with the ISL8225M, and is well suited for power hungry ASIC, FPGA and microprocessor loads in infrastructure systems. Current sharing and phase interleaving allow up to 6 modules to be paralleled for up to 240A of current.
| Alternatives | |||||
|---|---|---|---|---|---|
| Parameters | ISL8225M | ISL8240M | ISL8200AM | ISL8206M | |
| VIN (min) (V) | 4.5 | 4.5 | 4.5 | 1 | |
| VIN (max) (V) | 20 | 20 | 20 | 20 | |
| VOUT (min) (V) | 0.6 | 0.6 | 0.6 | 0.6 | |
| VOUT (max) (V) | 7.5 | 2.5 | 6 | 6 | |
| IOUT (max) (A) | 30 | 40 | 10 | 6 | |
| IQ | 131 mA | 140 mA | 36 mA | 13 mA | |
| Peak Efficiency (%) | 95 | 94 | 94 | 95 | |
| POR | Yes | Yes | Yes | Yes | |
| Switching Freq. (max) | 1.5 MHz | 0.7 MHz | 1.5 MHz | 0.66 MHz | |
| Switching Freq. (min) | 0.15 MHz | 0.35 MHz | 0.7 MHz | 0.51 MHz | |
| Control Type | Voltage Mode | Voltage Mode | Voltage Mode | Voltage Mode | |
| SYNCH Capability | Yes | Yes | Yes | No | |
| Current Sharing | Yes | Yes | Yes | No | |
| Tracking | Yes | Yes | No | No | |
| Digital | No | No | No | No | |
| Qualification Level | Standard | Standard | Standard | Standard | |
Application Notes |
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|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| ISL8225MEVAL4Z User Guide ISL8225MEVAL4Z Evaluation Board User Guide 09 Mar 2018 1.04 MB | 09 Mar 2018 | 1.04 MB | |||
| ISL8225MEVAL3Z User Guide ISL8225MEVAL3Z Evaluation Board User Guide 09 Mar 2018 794 KB | 09 Mar 2018 | 794 KB | |||
| ISL8225MEVAL2Z User Guide ISL8225MEVAL2Z Evaluation Board User Guide 09 Mar 2018 1.59 MB | 09 Mar 2018 | 1.59 MB | |||
| AN1681: Grounding Techniques Grounding Techniques 30 Jan 2018 496 KB | 30 Jan 2018 | 496 KB | |||
| AN1684: Nonideality of Ground Nonideality of Ground 30 Jan 2018 392 KB | 30 Jan 2018 | 392 KB | |||
Datasheets |
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|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| ISL8225M Datasheet Dual 15A/Single 30A Step-Down Power Module | 20 Oct 2017 | 1.67 MB | 简体中文, 日本語 | ||
Design Files |
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|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| ISL8225MEVAL3Z Design Files ISL8225MEVAL3Z BOM, Artowrk and Schematic Files for the ISL29125EVAL1Z Evaluation Board 12 Mar 2015 1009 KB | ZIP | 12 Mar 2015 | 1009 KB | ||
| ISL8225MEVAL4Z Design Files ISL8225MEVAL4Z BOM, Artowrk and Schematic Files for the ISL29125EVAL1Z Evaluation Board 12 Mar 2015 1.24 MB | ZIP | 12 Mar 2015 | 1.24 MB | ||
| ISL8225MEVAL2Z Design Files ISL8225MEVAL2Z BOM, Artowrk and Schematic Files for the ISL29125EVAL1Z Evaluation Board 12 Mar 2015 1.82 MB | ZIP | 12 Mar 2015 | 1.82 MB | ||
Simulation Models |
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|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| ISL8225M iSim 19 Feb 2015 | 19 Feb 2015 | ||||
Tech Briefs |
|||||
|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| TB488: PCB Land Pattern Design and Surface Mount Guidelines for POL Modules PCB Land Pattern Design and Surface Mount Guidelines for POL Modules 19 Mar 2018 951 KB | 19 Mar 2018 | 951 KB | |||
White Papers |
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|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| Five Easy Steps to Create a Multi-Load Power Solution 30 Jan 2017 502 KB | 30 Jan 2017 | 502 KB | |||
| How Green is Your Cloud? 05 May 2015 275 KB | 05 May 2015 | 275 KB | |||
| The Benefits of Using an Integrated Power Module vs. a Discrete Regulator The Benefits of Using an Integrated Power Module vs. a Discrete Regulator | 24 Mar 2015 | 193 KB | 简体中文 | ||
Miscellaneous |
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|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| Power Module Board Level Reliability Report 16 Sep 2016 187 KB | 16 Sep 2016 | 187 KB | |||
Using Eagle CAD software? While Intersil provides OrCad schematic files for most parts, there are also many Eagle CAD libraries available for Intersil parts. Note: Intersil has not tested nor verified these Eagle CAD libraries; use at your own risk.
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