产品概述
描述
L4979D and L4979MD are low dropout linear regulators with microprocessor control functions such as low voltage reset, watchdog, on/off control. Typical quiescent current is 100 μA in very low output current mode and enabled regulator. The devices drop to 6 μA with not enabled regulators.
On chip trimming results in high output voltage accuracy (+/-2%). Accuracy is kept over wide temperature range, line and load variation.
The maximum input voltage is 40 V. The max output current is internally limited. Internal temperature protection disables the voltage regulator output.
-
所有功能
- AEC-Q100 qualified
- Operating DC supply voltage range 5.6 V to 31 V
- Low quiescent current (6 μA typ. @ 25 °C with enable low)
- High precision output voltage (+/-2%)
- Low dropout voltage less than 0.5 V
- Reset circuit sensing the output voltage down to 1 V
- Programmable reset pulse delay with external capacitor
- Watchdog
- Programmable watchdog timer with external capacitor
- Thermal shutdown and short circuit protection
- Automotive temperature range (Tj = -40 °C to 150 °C)
- Enable input for enabling/disabling the voltage regulator output
电路原理图
EDA符号、封装和3D模型
STMicroelectronics - L4979MD
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L4979MD | 批量生产 | SO-20 | 汽车应用 | Ecopack2 (**) | |
| L4979MD013TR | 批量生产 | SO-20 | 汽车应用 | 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。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 温度（ºC） | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| L4979MD013TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | SO-20 | Tape and Reel | MALAYSIA | EAR99 | NEC | - | - | - | |||
| L4979MD | | | distributors 无法联系到经销商，请联系我们的销售办事处 | SO-20 | Tube | MALAYSIA | EAR99 | NEC | - | - | - | |||
L4979MD013TR 批量生产
L4979MD 批量生产