LM5119 Wide Input Range Dual Synchronous Buck Controller

National Semiconductor

Description

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 Specifications

Part number: LM5119
Manufacturer: National Semiconductor
File Size: 701.90 KB
Datasheet: LM5119_NationalSemiconductor.pdf
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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LM5119 Wide Input Range Dual Synchronous Buck Controller National Semiconductor

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