LM5005 High Voltage 2.5 Amp Buck Regulator

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM5005MH/NOPB LM5005MH		TSSOP EXP PAD	20	1 1	260 260	Detail	Download	N/A	NSUZXYTT LM5005 MH
LM5005MHX/NOPB LM5005MHX		TSSOP EXP PAD	20	1 1	260 260	Detail	Download	N/A	NSUZXYTT LM5005 MH

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Description

The LM5005 high voltage switching regulator features all of the functions necessary to implement an efficient high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 75V N-Channel buck switch with an output current capability of 2.5 Amps. The regulator 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 reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM5005 regulators to self-synchronize or to be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown and remote shutdown capability. The device is available in a power enhanced TSSOP-20 package featuring an exposed die attach pad to aid thermal dissipation.

Features

Diagrams

Typical Application *click for larger image	Block Diagram *click for larger image
Typical Performance *click for larger image