LM2674 datasheet(21/32 Pages) TI

部件名	LM2674

功能描述	Efficiency up to 96%, Available in SOIC-8, 8-Pin PDIP and WSON

PDF	32 Pages

Scroll/Zoom	100%

制造商	TI [Texas Instruments]

网页	http://www.ti.com

标志

21 / 32 page

LM2674

www.ti.com

SNVS007F – SEPTEMBER 1998 – REVISED APRIL 2013

APPLICATION INFORMATION

TYPICAL SURFACE MOUNT PC BOARD LAYOUT, FIXED OUTPUT (4X SIZE)

CIN - 15 μF, 25V, Solid Tantalum Sprague, “594D series”

COUT - 68 μF, 10V, Solid Tantalum Sprague, “594D series”

D1 - 1A, 40V Schottky Rectifier, Surface Mount

L1 - 47

μH, L13, Coilcraft DO3308

CB - 0.01 μF, 50V, Ceramic

TYPICAL SURFACE MOUNT PC BOARD LAYOUT, ADJUSTABLE OUTPUT (4X SIZE)

CIN - 15 μF, 50V, Solid Tantalum Sprague, “594D series”

COUT - 33 μF, 25V, Solid Tantalum Sprague, “594D series”

D1 - 1A, 40V Schottky Rectifier, Surface Mount

L1 - 100

μH, L20, Coilcraft DO3316

CB - 0.01 μF, 50V, Ceramic

R1 - 1k, 1%

R2 - Use formula in Design Procedure

Figure 29. PC Board Layout

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LM2674 数据表(PDF) 21 Page - Texas Instruments