PGND/EP

10 PF

Enable

7V to 20V

U1

1.07k

LMZ22005TZ

0.047 PF

220 PF

100:

42.2k

12.7k

3.32k

0.047 PF

100 PF

OPT

+

D1 OPT

5.1V

SYNC

1.50 k:

0.47 PF

150 PF

+

23.7:

LMZ22005

www.ti.com

SNVS686J – MARCH 2011 – REVISED AUGUST 2015

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LMZ22005 is a step-down DC-to-DC power module. It is typically used to convert a higher DC voltage to a

lower DC voltage with a maximum output current of 5 A. The following design procedure can be used to select

components for the LMZ22005. Alternately, the WEBENCH software may be used to generate complete designs.

When generating a design, the WEBENCH software uses iterative design procedure and accesses

comprehensive databases of components. Please go to www.ti.com for more details.

8.2 Typical Application

Figure 46. Typical Application Schematic

8.2.1 Design Requirements

For this example the following application parameters exist:

•

•

•

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Product Folder Links: LMZ22005