产品概要
描述
The L4993 is a monolithic integrated 5 V Voltage regulator with a low drop voltage at currents up to 150 mA.The output voltage regulating element consists in a p-channel MOS and the regulation is performed regardless of input voltage transients up to 40 V. The high precision of the output voltage is obtained with a pre-trimmed reference voltage. The L4993 is protected against short circuit and an over-temperature protection switches off the device in case of extremely high power dissipation. The L4993 watchdog is active when the Enable is high. State of the art features like reset and watchdog make this device particularly suitable to supply microprocessor systems in automotive applications.
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All features
- AEC-Q100 qualified
- Operating DC supply voltage range 5.6 V to 31 V
- Reset circuit sensing the output voltage down to 1 V
- Programmable reset pulse delay with external capacitor
- Watchdog
- Programmable watchdog timer with external
- Enable input for enabling/disabling the watchdog functionality
- Thermal shutdown and short circuit protection
- Wide temperature range (Tj = -40°C to 150°C)
电路原理图
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L4993
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Material Declaration** |
|---|---|---|---|---|---|
| L4993DTR | Active 产品已量产 | SO-8 | Automotive | Ecopack2 | |
| L4993MD | NRND 不推荐用于新设计。量产仅供支持现有生产。 | SO-20 | Automotive | Ecopack2 (**) | |
| L4993MDTR | Active 产品已量产 | SO-20 | Automotive | Ecopack2 (**) |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| L4993DTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L4993MDTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L4993MD | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
L4993DTR Active
L4993MDTR Active
L4993MD NRND