LMZ14202H

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SNVS691D – JANUARY 2011 – REVISED FEBRUARY 2013

Check for Samples: LMZ14202H

1

FEATURES

ELECTRICAL SPECIFICATIONS

23

•

Integrated Shielded Inductor

•

Up to 2A Output Current

•

Simple PCB Layout

•

Input Voltage Range 6V to 42V

•

Flexible Startup Sequencing Using External

•

Output Voltage as Low as 5V

Soft-start and Precision Enable

•

Efficiency up to 97%

•

Protection Against Inrush Currents

•

Input UVLO and Output Short Circuit

PERFORMANCE BENEFITS

Protection

•

High Efficiency Reduces System Heat

•

– 40°C to 125°C Junction Temperature Range

Generation

•

Single Exposed Pad and Standard Pinout for

•

Low Radiated EMI(EN 55022 Class B

Easy Mounting and Manufacturing

•

Low Output Voltage Ripple

•

No Compensation Required

•

Pin-to-pin Compatible Family:

•

Low Package Thermal Resistance

–

LMZ14203H/2H/1H (42V Max 3A, 2A, 1A)

–

LMZ14203/2/1 (42V Max 3A, 2A, 1A)

DESCRIPTION

–

LMZ12003/2/1 (20V Max 3A, 2A, 1A)

The LMZ14202H SIMPLE SWITCHER power module

is an easy-to-use step-down DC-DC solution capable

•

Fully Enabled for Webench® Power Designer

of driving up to 2A load with exceptional power

conversion efficiency, line and load regulation, and

APPLICATIONS

output accuracy. The LMZ14202H is available in an

•

Intermediate Bus Conversions to 12V and 24V

innovative

package

that

enhances

thermal

Rail

performance

and

allows

for

hand

or

machine

soldering.

•

Time Critical Projects

•

Space Constrained / High Thermal

The LMZ14202H can accept an input voltage rail

Requirement Applications

between 6V and 42V and deliver an adjustable and

highly accurate output voltage as low as 5V. The

•

Negative Output Voltage Applications

LMZ14202H only requires three external resistors

and four external capacitors to complete the power

solution. The LMZ14202H is a reliable and robust

design with the following protection features: thermal

shutdown, input under-voltage lockout, output over-

voltage protection, short-circuit protection, output

current limit, and allows startup into a pre-biased

output.

A

single

resistor

adjusts

the

switching

frequency up to 1 MHz.

Figure 1. Easy to use 7 pin package

PFM 7 Pin Package

10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)

RoHS Compliant

(1)

EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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SIMPLE SWITCHER is a registered trademark of Texas Instruments.

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All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2011–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.