概览
描述
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.
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 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
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| 类型 | 文档标题 | 日期 |
| 数据手册 | PDF 974 KB | |
| 产品变更通告 | PDF 109 KB | |
| 白皮书 | PDF 462 KB English , 日本語 | |
| 应用说明 | PDF 592 KB | |
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设计和开发
开发板与套件
评估
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 evaluates the ISL91107IIAZ featuring adjustable Vout.
The ISL91107 is a high-current buck-boost switching regulator for systems...
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评估
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 evaluates the ISL91107IIN featuring 3.3 Vout.
The ISL91107 is a high-current buck-boost switching regulator for systems using new...
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评估
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 evaluate the ISL91107IRTAZ featuring adjustable Vout.
The ISL91107IR is a high-current buck-boost switching regulator for systems...
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评估
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 evaluate the ISL91107IRTNZ featuring 3.3 Vout.
The ISL91107IR is a high-current buck-boost switching regulator for systems using...
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2020年10月12日
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