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1 Features

1? Integrated Shielded Inductor

? Simple PCB Layout

? Fixed Switching Frequency (350kHz)

? Flexible Start-up Sequencing Using External Softstart,

Tracking and Precision Enable

? Protection Against Inrush Currents and Faults

such as Input UVLO and Output Short Circuit

? Junction Temperature Range –40°C to 125°C

? Single Exposed Pad and Standard Pinout for Easy

Mounting and Manufacturing

? Fully Enabled for WEBENCH? Power Designer

? Pin Compatible With LMZ22010/08/06,

LMZ12010/06, LMZ23610/08/06, and

LMZ13610/08/06

? Electrical Specifications

– 40-W Maximum Total Output Power

– Up to 8-A Output Current

– Input Voltage Range 6 V to 20 V

– Output Voltage Range 0.8 V to 6 V

– Efficiency up to 92%

? Performance Benefits

– High Efficiency Reduces System Heat

Generation

– Low Radiated Emissions (EMI) Tested to

EN55022

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

tested on Evaluation Board with EMI configuration

– Only 7 External Components

– Low Output Voltage Ripple

– No External Heat Sink Required

2 Applications

? Point-of-load Conversions from 12-V Input Rail

? Time-Critical Projects

? Space Constrained / High Thermal Requirement

Applications

? Negative Output Voltage Applications

See AN-2027 SNVA425.

3 Description

The LMZ12008 SIMPLE SWITCHER? power module

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

of driving up to 8-A load. The LMZ12008 is available

in an innovative package that enhances thermal

performance and allows for hand or machine

soldering.

The LMZ12008 can accept an input voltage rail

between 6 V and 20 V and can deliver an adjustable

and highly accurate output voltage as low as 0.8 V.

The LMZ12008 only requires two external resistors

and external capacitors to complete the power

solution. The LMZ12008 is a reliable and robust

design with the following protection features: thermal

shutdown, programmable input undervoltage lockout,

output overvoltage protection, short circuit protection,

output current limit, and the device allows start-up

into a prebiased output.