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LMZ23605 Scheda tecnica(PDF) 1 Page - Texas Instruments

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Il numero della parte LMZ23605
Spiegazioni elettronici  LMZ23605 5A SIMPLE SWITCHER짰 Power Module with 36V Maximum Input Voltage
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
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LMZ23605
www.ti.com
SNVS659E – MARCH 2011 – REVISED AUGUST 2012
LMZ23605 5A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage
Check for Samples: LMZ23605
1
KEY FEATURES
PERFORMANCE BENEFITS
23
Integrated Shielded Inductor
High Efficiency Reduces System Heat
Generation
Simple PCB Layout
Complies with EN55022 Class B (1)
Frequency Synchronization Input (650 kHz to
950 kHz)
Low Component Count, Only 5 External
Components
Flexible Startup Sequencing Using External
Soft-Start, Tracking and Precision Enable
Low Output Voltage Ripple
Protection Against Inrush Currents and Faults
Uses PCB as Heat Sink, no Airflow Required
Such as Input UVLO and Output Short Circuit
DESCRIPTION
– 40°C to 125°C Junction Temperature Range
The LMZ23605 SIMPLE SWITCHER® power module
Single Exposed Pad and Standard Pinout for
is an easy-to-use step-down DC-DC solution capable
Easy Mounting and Manufacturing
of driving up to 5A load. The LMZ23605 is available
Fast Transient Response for Powering FPGAs
in an innovative package that enhances thermal
and ASICs
performance
and
allows
for
hand
or
machine
soldering.
Fully Enabled for Webench® Power Designer
Pin Compatible with
The LMZ23605 can accept an input voltage rail
LMZ22005/LMZ23603/LMZ22003
between 6V and 36V and deliver an adjustable and
highly accurate output voltage as low as 0.8V. The
LMZ23605 only requires two external resistors and
APPLICATIONS
three external capacitors to complete the power
Point of Load Conversions from 12V and 24V
solution. The LMZ23605 is a reliable and robust
Input Rail
design with the following protection features: thermal
shutdown, programmable input under-voltage lockout,
Time Critical Projects
output over-voltage protection, short-circuit protection,
Space Constrained / High Thermal
output current limit, and allows startup into a pre-
Requirement Applications
biased output. The sync input allows synchronization
Negative Output Voltage Applications See
over the 650 to 950 kHz switching frequency range.
SNVA425
ELECTRICAL SPECIFICATIONS
30W Maximum Total Output Power
Up to 5A Output Current
Input Voltage Range 6V to 36V
Output Voltage Range 0.8V to 6V
Efficiency up to 92%
Figure 1. PFM 7 Pin Package(2)
Easy To Use 7 Pin Package
RoHS Compliant
(1)
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007.
See SNVA473 and layout for information on device under
test. Vin = 24V Vo = 3.3V Io = 5A
(2)
Theta JA measured on a 3.5” x 3.5” four layer board, with
three ounce copper on outer layers and two ounce copper on
inner layers, sixty 10 mil thermal vias, no air flow, and 1W
power dissipation. Refer to application note layout diagrams.
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.
2
Webench, SIMPLE SWITCHER are registered trademarks of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2012, 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.


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