Highly-Integrated Buck-Boost Switching Regulator Evaluation Board
The ISL91108IIA-EVZ evaluation platform allows for quick evaluation of the ISL91108 highly-integrated buck-boost switching regulator that accepts input voltages either...
概览
简介
The ISL91108 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 2.7A of burst current (PVIN = 3V, VOUT = 3.3V), and provides excellent efficiency due to its fully synchronous 4-switch architecture. No load quiescent current of only 27.5µA also optimizes efficiency under light-load conditions. Forced PWM and/or synchronization to an external clock may also be selected for noise sensitive applications.
The ISL91108 is designed for standalone applications and supports a 3.3V fixed output voltage 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 ISL91108 requires only a single inductor and very few external components. Power supply solution size is minimized by a 2.34mm x 1.72mm WLCSP and a 2.6MHz switching frequency, which further reduces the size of external components.
特性
- 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 1.6A DC (PVIN = 2.8V, VOUT = 3.3V)
- Burst current: up to 2.7A (PVIN = 3V, VOUT = 3.3V, tON<600µs, t = 4.6ms)
- High efficiency: up to 95%
- 27.5µA quiescent current maximizes light load efficiency
- 2.6MHz switching frequency minimizes external component size
- Selectable forced PWM mode and external synchronization
- Fully protected for short-circuit, over-temperature, and undervoltage
- Small 2.34mm x 1.72mm WLCSP
应用
应用
- Smartphones and tablets
- Wireless communication devices
- 2G/3G/4G power amplifiers
文档
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| PDF 627 KB | 数据手册 | |
| PDF 5.51 MB 日文 | 手册 | |
| PDF 182 KB | 产品变更通告 | |
| PDF 592 KB | 应用文档 | |
| PDF 509 KB | 应用文档 | |
| PDF 397 KB | 应用文档 | |
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设计和开发
软件与工具
软件与工具
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Software type
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公司
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| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | 瑞萨电子 |
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开发板与套件
开发板与套件
Highly-Integrated Buck-Boost Switching Regulator Evaluation Board
The ISL91108IIN-EVZ evaluation platform allows for quick evaluation of the ISL91108 highly-integrated buck-boost switching regulator that accepts input voltages either...
模型
ECAD 模块
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
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支持
Renesas 样片
选择下单器件型号:
| 下单器件型号 | 样片 |
|---|---|
| ISL91108IIAZ-T | Availability |
| ISL91108IIAZ-T7A | Availability |
| ISL91108IINZ-T | Availability |
| ISL91108IINZ-T7A | Availability |