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LMZ34202 Datasheet

2-A Power Module

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LMZ34202
SNVSAJ2C – MARCH 2016 – REVISED JUNE 2018
LMZ34202 4.5-V to 42-V Input, 2-A Power Module
1 Features
1 Complete Integrated Power Solution Allows
Small Footprint, Low-Profile Design
• 10 mm × 10 mm × 4.3 mm Package
• Wide-Output Voltage Adjust (2.5 V to 7.5 V)
• Adjustable Switching Frequency
(200 kHz to 1 MHz)
• Synchronizes to an External Clock
• Automatic PFM Mode for Light Load Efficiency
• Adjustable Soft-Start Time
• Output Voltage Sequencing / Tracking
• Power Good Output
• Programmable Undervoltage Lockout (UVLO)
• Over-Temperature Thermal Shutdown Protection
• Over-Current Protection (Hiccup Mode)
• Pre-Bias Output Start-Up
• Operating Temperature Range: –40°C to 105°C
• Enhanced Thermal Performance: 14°C/W
• Meets EN55022 Class B Emissions
– Integrated Shielded Inductor
• Create a Custom Design using the LMZ34202
with the WEBENCH® Power Designer
2 Applications
• Industrial and Motor Controls
• Automated Test Equipment
• Medical and Imaging Equipment
• High Density Power Systems
3 Description
The LMZ34202 power module is an easy-to-use
integrated power supply that combines a 2-A DC-DC
converter with a shielded inductor and passives into a
low profile, QFN package. This total power solution
allows as few as three external components while
maintaining an ability to adjust key parameters to
meet specific design requirements.
The QFN package is easy to solder to a printed
circuit board, allows reflow profiles up to 245°C, and
has excellent power dissipation capability. The
LMZ34202 offers flexibilty with many features and is
ideal for powering a wide range of devices and
systems.
Device Information(1)
DEVICE NUMBER
PACKAGE
BODY SIZE
LMZ34202
QFN (43)
10.00 mm × 10.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN
CIN
Simplified Application
LMZ34202
PVIN
VOUT
INH/UVLO
SENSE+
VBSEL
VOUT
COUT
Efficiency vs Output Current
100
90
80
VADJ
RSET
AGND
PGND
70
PVIN = 12 V
60
PVIN = 24 V
50
40 VOUT = 5 V
30
0.0
0.5 1.0 1.5
Output Current (A)
2.0
C001
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.




etcTI

LMZ34202 Datasheet Preview

LMZ34202 Datasheet

2-A Power Module

No Preview Available !

LMZ34202
SNVSAJ2C – MARCH 2016 – REVISED JUNE 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Switching Characteristics .......................................... 7
6.7 Typical Characteristics .............................................. 8
6.8 Typical Characteristics (Thermal Derating)............. 11
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 20
8 Application and Implementation ........................ 21
8.1 Application Information............................................ 21
8.2 Typical Application .................................................. 21
9 Power Supply Recommendations...................... 25
10 Layout................................................................... 26
10.1 Layout Guidelines ................................................. 26
10.2 Layout Example .................................................... 26
10.3 EMI........................................................................ 27
11 Device and Documentation Support ................. 28
11.1 Device Support...................................................... 28
11.2 Receiving Notification of Documentation Updates 28
11.3 Community Resources.......................................... 28
11.4 Trademarks ........................................................... 28
11.5 Electrostatic Discharge Caution ............................ 28
11.6 Glossary ................................................................ 29
12 Mechanical, Packaging, and Orderable
Information ........................................................... 29
12.1 Tape and Reel Information ................................... 29
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (April 2018) to Revision C
Page
• Changed allows reflows "up to 260°C" to "up to 245°C" to match Abs Max table ................................................................. 1
• Added top navigator for TI reference design .......................................................................................................................... 1
Changes from Revision A (June 2017) to Revision B
Page
• Added WEBENCH® design links for the LMZ34202 ............................................................................................................. 1
• Increased the peak reflow temperature and maximum number of reflows to JEDEC specifications for improved
manufacturability..................................................................................................................................................................... 5
Changes from Original (March 2016) to Revision A
Page
• Added peak reflow and maximum number of reflows information ........................................................................................ 5
2 Submit Documentation Feedback
Product Folder Links: LMZ34202
Copyright © 2016–2018, Texas Instruments Incorporated


Part Number LMZ34202
Description 2-A Power Module
Maker etcTI
Total Page 30 Pages
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