产品概述
描述
The L5972D is a step down monolithic power switching regulator with a minimum switch current limit of 2A so it is able to deliver more than 1.5A DC current to the load depending on the application conditions.
The output voltage can be set from 1.235V to 35V.
The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250mΩ) as switching element to minimize the size of the external components.
An internal oscillator fixes the switching frequency at 250kHz.
Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus, available in all computer related applications.
Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.
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所有功能
- Thermal shutdown
- Protection against feedback disconnection
- Zero load current operation
- Voltage feedforward
- 2A internal switch
- Output voltage adjustable from 1.235V to 35V
- Operating input voltage from 4.4V to 36V
- 250kHz Internally fixed frequency
- Internal current limiting
- Low dropout operation: 100% duty cycle
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Power Tree Designer
Specify input/output power for each node in the tree Check for consistency Design each individual node Start your design with the L5972D now
xwith our eDesignSuite online design aid utilities and simulation tools.
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EDA符号、封装和3D模型
STMicroelectronics - L5972D
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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** |
|---|---|---|---|---|---|
| L5972D | 批量生产 | SO-8 | 工业 | Ecopack2 | |
| L5972D013TR | 批量生产 | SO-8 | 工业 | 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 | 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 | |||||||||||
| L5972D | 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 | Tube | SO-8 | -40 | 150 | CHINA | | ||
| L5972D013TR | 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 | SO-8 | -40 | 150 | CHINA | | ||