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LMZ14202 bảng dữ liệu(PDF) 1 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  SIMPLE SWITCHER 6V to 42V, 2A Power Module in Leaded SMT-TO Package
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LMZ14202 bảng dữ liệu(HTML) 1 Page - Texas Instruments

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LMZ14202
SNVS648J – JANUARY 2010 – REVISED OCTOBER 2015
LMZ14202 SIMPLE SWITCHER® 6V to 42V, 2A Power Module in Leaded SMT-TO Package
1 Features
2 Applications
1
Integrated Shielded Inductor
Point of Load Conversions from 12-V and 24-V
Input Rail
Simple PCB Layout
Time-Critical Projects
Flexible Start-Up Sequencing Using External Soft-
Start and Precision Enable
Space Constrained and High Thermal
Requirement Applications Easy-To-Use, 7-Pin
Protection Against Inrush Currents and Faults
Package
Such as Input UVLO and Output Short Circuit
PFM 7-Pin Package
Junction Temperature Range: –40°C to 125°C
Negative Output Voltage Applications
Single Exposed Pad and Standard Pinout for Easy
(See AN-2027) SNVA425
Mounting and Manufacturing
Fast Transient Response for Powering FPGAs
3 Description
and ASICs
The LMZ14202, SIMPLE SWITCHER® power module
Low Output Voltage Ripple
is an easy-to-use step-down DC-DC that can drive up
Pin-to-Pin Compatible Family:
to 2-A load with exceptional power conversion
efficiency, line and load regulation, and output
LMZ14203/2/1 (42 V Maximum; 3 A, 2 A, 1 A)
accuracy. The LMZ14202 is available in an innovative
LMZ12003/2/1 (20 V Maximum; 3 A, 2 A, 1 A)
package that enhances thermal performance and
Fully Enabled for WEBENCH® Power Designer
allows for hand or machine soldering.
Electrical Specifications
The LMZ14202 can accept an input voltage rail
12-W Maximum Total Output Power
between 6 V and 42 V and deliver an adjustable and
highly accurate output voltage as low as 0.8 V. The
Up to 2-A Output Current
LMZ14202 only requires three external resistors and
Input Voltage Range: 6 V to 42 V
four external capacitors to complete the power
Output Voltage Range: 0.8 V to 6 V
solution. The LMZ14202 is a reliable and robust
design with the following protection features: thermal
Efficiency up to 90%
shutdown,
input
undervoltage
lockout,
output
Performance Benefits
overvoltage protection, short-circuit protection, output
Operates at High Ambient Temperature With
current limit, and allows start-up into a prebiased
No Thermal Derating
output.
A
single
resistor
adjusts
the
switching
frequency up to 1 MHz.
High Efficiency Reduces System Heat
Generation
Device Information(1)(2)
Low Radiated Emissions (EMI) Tested With
PART NUMBER
PACKAGE
BODY SIZE (NOM)
EN55022 Class B Standard
LMZ14202
TO-PMOD (7)
10.16 mm × 9.85 mm
Low External Component Count
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
(2) Peak reflow temperature equals 245°C. See SNAA214 for
more details.
Simplified Application Schematic
Efficiency 12-V Input at 25°C
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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