LMZ34202 Datasheet, PDF (1/31 Pages) Texas Instruments – SIMPLE SWITCHER 4.5-V to 42-V Input, 2-A Power Module

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LMZ34202
SNVSAJ2 – MARCH 2016
LMZ34202 SIMPLE SWITCHER 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
2 Applications
• Industrial and Motor Controls
• Automated Test Equipment
• Medical and Imaging Equipment
• High Density Power Systems
3 Description
The LMZ34202 SIMPLE SWITCHER^® 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 260°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)
10.0 mm × 10.0 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Application
Efficiency vs Output Current
100
90
80
70
PVIN = 12 V
60
PVIN = 24 V
50
40
V_OUT = 5 V
30
0.0
0.5
1.0
1.5
2.0
Output Current (A)
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.