SNVS649E – JANUARY 2010 – REVISED MARCH 2013
LMZ14201 1A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage
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FEATURES
DESCRIPTION
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•
Integrated Shielded Inductor
The LMZ14201 SIMPLE SWITCHER power module
•
Simple PCB Layout
is an easy-to-use step-down DC-DC solution capable
of driving up to 1A load with exceptional power
•
Flexible Startup Sequencing Using External
conversion efficiency, line and load regulation, and
Soft-start and Precision Enable
output accuracy. The LMZ14201 is available in an
•
Protection Against Inrush Currents and Faults
innovative
package
that
enhances
thermal
such as Input UVLO and Output Short Circuit
performance
and
allows
for
hand
or
machine
•
– 40°C to 125°C Junction Temperature Range
soldering.
•
Single Exposed Pad and Standard Pinout for
The LMZ14201 can accept an input voltage rail
Easy Mounting and Manufacturing
between 6V and 42V and deliver an adjustable and
highly accurate output voltage as low as 0.8V. The
•
Fast Transient Response for Powering FPGAs
LMZ14201 only requires three external resistors and
and ASICs
four external capacitors to complete the power
•
Low Output Voltage Ripple
solution. The LMZ14201 is a reliable and robust
•
Pin-to-pin Compatible Family:
design with the following protection features: thermal
shutdown, input under-voltage lockout, output over-
–
LMZ14203/2/1 (42V Max 3A, 2A, 1A)
voltage protection, short-circuit protection, output
–
LMZ12003/2/1 (20V Max 3A, 2A, 1A)
current limit, and allows startup into a pre-biased
•
Fully Enabled for Webench® Power Designer
output.
A
single
resistor
adjusts
the
switching
frequency up to 1 MHz.
APPLICATIONS
ELECTRICAL SPECIFICATIONS
•
Point of Load Conversions from 12V and 24V
Input Rail
•
6W Maximum Total Output Power
•
Time Critical Projects
•
Up to 1A Output Current
•
Space Constrained / High Thermal
•
Input Voltage Range 6V to 42V
Requirement Applications
•
Output Voltage Range 0.8V to 6V
•
Negative Output Voltage Applications
•
Efficiency up to 90%
(See AN-2027)
PERFORMANCE BENEFITS
•
Operates at High Ambient Temperature with
no Thermal Derating
•
High Efficiency Reduces System Heat
Generation
•
Low Radiated Emissions (EMI) Complies with
EN55022 Class B Standard
•
Low External Component Count
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)
θ
JA
= 20°C/W,
θ
JC
= 1.9°C/W
RoHS Compliant
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2010–2013, 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.
