产品概述
描述
The AST1S31HF is an internally compensated 2.3 MHz fixed frequency PWM synchronous step-down regulator. The AST1S31HF operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to VIN. The AST1S31HF device integrates a 70 mΩ high-side switch and a 55 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.The peak current mode control with internal compensation deliver a very compact solution with a minimum component count.
The AST1S31HF is available in a 3 mm x 3 mm, 8-lead VFDFPN package.
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所有功能
- AECQ100 qualified
- 3 A DC output current
- 2.8 V to 4 V input voltage
- Output voltage adjustable from 0.8 V
- 2.3 MHz switching frequency
- Internal soft-start and enable
- Integrated 70 mΩ and 55 mΩ power MOSFETs
- All ceramic capacitor
- Power Good (POR)
- Cycle-by-cycle current limiting
- Current foldback short-circuit protection
- VFDFPN 3 x 3 - 8L package
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| Resource title | 版本 | Latest update |
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产品规格 (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 4.0 | 15 Sep 2020 | 15 Sep 2020 |
技术文档 (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 2.2 | 20 Jan 2020 | 20 Jan 2020 |
宣传册 (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 1.0 | 15 Apr 2021 | 15 Apr 2021 |
手册 (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 1.1 | 03 Jun 2021 | 03 Jun 2021 |
EDA符号、封装和3D模型
STMicroelectronics - AST1S31HF
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