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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EDA符号、封装和3D模型
STMicroelectronics - AST1S31HF
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样片和购买
| 产品型号 | Order from distributors | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| AST1S31HF | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tape and Reel | VFDFPN 8 3x3x1.0 | - | - | MALAYSIA | | ||
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