LM5119 Datasheet - National Semiconductor

LM5119, Wide Input Range Dual Synchronous Buck Controller

LM5119 Wide Input Range Dual Synchronous Buck Controller September 28, 2010 LM5119 Wide Input Range Dual Synchronous Buck Controller General Descrip.
The LM5119 is a dual synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply.

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Datasheet Details

Part number:

LM5119

Manufacturer:

National Semiconductor

File Size:

701.90 KB

Description:

Wide Input Range Dual Synchronous Buck Controller

Features

* include thermal shutdown, frequency synchronization, cycle-by-cycle and hiccup mode current limit and adjustable line under-voltage lockout. The device is available in a power enhanced leadless LLP-32 package featuring an exposed die attach pad to aid thermal dissipation. Features
* Emulated pe

Applications

* from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp r

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