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E-L4973D3.3 数据表 (PDF) - STMicroelectronics

E-L4973D3.3 Datasheet PDF - STMicroelectronics
部件名 E-L4973D3.3
下载  E-L4973D3.3 下载

文件大小   367.28 Kbytes
  27 Pages
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics
功能描述 3.5A step down switching regulator

E-L4973D3.3 Datasheet (PDF)

Go To PDF Page 下载 数据表
E-L4973D3.3 Datasheet PDF - STMicroelectronics

部件名 E-L4973D3.3
下载  E-L4973D3.3 Click to download

文件大小   367.28 Kbytes
  27 Pages
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics
功能描述 3.5A step down switching regulator

E-L4973D3.3 数据表 (HTML) - STMicroelectronics

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E-L4973D3.3 产品详情

Description

The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15Ω) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed).



Features

■ Up to 3.5A step down converter

■ Operating input voltage from 8V to 55V

■ 3.3V and 5.1V (±1%) fixed output, and adjustable outputs from:

   – 0.5V to 50V (3.3 type)

   – 5.1V to 50V (5.1 type)

■ Frequency adjustable up to 300kHz

■ Voltage feed forward

■ Zero load current operation (min 1mA)

■ Internal current limiting (pulse by pulse and HICCUP mode)

■ Precise 5.1V (1.5%) reference voltage externally available

■ Input/output synchronization function

■ Inhibit for zero current consumption (100mA typ. at VCC = 24V)

■ Protection against feedback disconnection

■ Thermal shutdown

■ Output over voltage protection

■ Soft start function



 




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关于 STMicroelectronics


Stmicroelectronics是位于瑞士日内瓦的跨国电子和半导体制造商。

该公司为汽车,工业和消费者市场的各种应用提供了广泛的产品,包括微控制器,传感器,功率放大器和集成电路。

Stmicroelectronics成立于1987年,在1​​00多个国家 /地区开展业务,是世界上最大的半导体公司之一。

*此信息仅供一般参考,对于因上述信息造成的任何损失或损害,我们概不负责。




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