High-Efficiency Buck-Boost Regulators with 4.1A Switches Evaluation Board
The ISL91107IIN-EVZ and ISL91107IIA-EVZ platforms allow quick evaluation of the high-performance features of the ISL91107 buck-boost regulator. The ISL91107IIA-EVZ...
Overview
Description
The ISL91107 is a highly-integrated buck-boost switching regulator that accepts input voltages either above or below the regulated output voltage. Unlike other buck-boost regulators, this regulator automatically transitions between operating modes without significant output disturbance.
This device is capable of delivering up to 2A of output current (PVIN = 2.8V, VOUT = 3.3V) and provides excellent efficiency due to its fully synchronous 4-switch architecture. No-load quiescent current of only 45µA also optimizes efficiency under light-load conditions.
The ISL91107 is designed for standalone applications and supports 3.3V fixed output voltages or variable output voltages with an external resistor divider. Output voltages as low as 1V or as high as 5.2V are supported using an external resistor divider.
The ISL91107 requires only a single inductor and very few external components. Power supply solution size is minimized by a 2.15mmx1.51mm WLCSP and a 2.5MHz switching frequency, which further reduces the size of external components. Alternatively, the ISL91107IR is available in a 3x4 20 Ld TQFN package.
Features
- Accepts input voltages above or below regulated output voltage
- Automatic and seamless transitions between Buck and Boost modes
- Input voltage range: 1.8V to 5.5V
- Output current: up to 2A (PVIN = 2.8V, VOUT = 3.3V)
- High efficiency: up to 96%
- 45μA quiescent current maximizes light-load efficiency
- 2.5MHz switching frequency minimizes external component size
- Selectable forced PWM mode
- Fully protected for short-circuit, over-temperature and undervoltage
- Small 2.15mmx1.51mm WLCSP
Comparison
Applications
Applications
- Smartphones and tablet PCs
- Wireless communication devices
- 2G/3G/4G power amplifiers
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 974 KB | |
| Product Change Notice | PDF 109 KB | |
| White Paper | PDF 285 KB 日本語 , 简体中文 | |
| Application Note | PDF 592 KB | |
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Design & Development
Boards & Kits
High-Efficiency Buck-Boost Regulators with 4.1A Switches Evaluation Board
The ISL91107IIN-EVZ and ISL91107IIA-EVZ platforms allow quick evaluation of the high-performance features of the ISL91107 buck-boost regulator. The ISL91107IIN-EVZ...
Featured Documents:
High-Efficiency Buck-Boost Regulators with 4.1A Switches Evaluation Board
The ISL91107IRA-EVZ platform allows for a quick evaluation of the high-performance features of the ISL91107IR buck-boost regulator. The ISL91107IRA-EVZ is used to...
Featured Documents:
High-Efficiency Buck-Boost Regulators with 4.1A Switches Evaluation Board
The ISL91107IRN-EVZ platform allows for a quick evaluation of the high-performance features of the ISL91107IR buck-boost regulator. The ISL91107IRN-EVZ is used to...
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.
Processing table
ISL91107IIAZ-T Active Samples Available |
2033 Dec | WLCSP-TKCURDL | Reel | 1 | Get Samples, | |
ISL91107IIAZ-T7A Active Samples Available
Buy Now
|
2033 Dec | WLCSP-TKCURDL | Reel | 1 | Get Samples, | |
ISL91107IINZ-T Active Samples Available |
2033 Dec | WLCSP-TKCURDL | Reel | 1 | 1.001 | Get Samples, |
ISL91107IINZ-T7A Active Samples Available
Buy Now
|
2033 Dec | WLCSP-TKCURDL | Reel | 1 | 1.343 | Get Samples, |
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Videos & Training
News & Blog Posts
| Blog Post | Oct 9, 2020 |
