Datasheet
LMZ14202H
www.ti.com
SNVS691E –JANUARY 2011–REVISED OCTOBER 2013
LMZ14202H 2A, SIMPLE SWITCHER
®
Power Module for High Output Voltage
Check for Samples: LMZ14202H
1
FEATURES
ELECTRICAL SPECIFICATIONS
23
• Integrated Shielded Inductor
• Up to 2A Output Current
• Simple PCB Layout
• Input Voltage Range 6V to 42V
• Flexible Startup Sequencing Using External
• Output Voltage as Low as 5V
Soft-start and Precision Enable
• Efficiency up to 97%
• Protection Against Inrush Currents
• Input UVLO and Output Short Circuit
PERFORMANCE BENEFITS
Protection
• High Efficiency Reduces System Heat
• – 40°C to 125°C Junction Temperature Range
Generation
• Single Exposed Pad and Standard Pinout for
• Low Radiated EMI(EN 55022 Class B
Easy Mounting and Manufacturing
Compliant)
(1)
• Low Output Voltage Ripple
• No Compensation Required
• Pin-to-pin Compatible Family:
• Low Package Thermal Resistance
– LMZ14203H/2H/1H (42V Max 3A, 2A, 1A)
– LMZ14203/2/1 (42V Max 3A, 2A, 1A)
DESCRIPTION
– LMZ12003/2/1 (20V Max 3A, 2A, 1A)
The LMZ14202H SIMPLE SWITCHER power module
is an easy-to-use step-down DC-DC solution capable
• Fully Enabled for Webench® Power Designer
of driving up to 2A load with exceptional power
conversion efficiency, line and load regulation, and
APPLICATIONS
output accuracy. The LMZ14202H is available in an
• Intermediate Bus Conversions to 12V and 24V
innovative package that enhances thermal
Rail
performance and allows for hand or machine
soldering.
• Time Critical Projects
• Space Constrained / High Thermal
The LMZ14202H can accept an input voltage rail
Requirement Applications
between 6V and 42V and deliver an adjustable and
highly accurate output voltage as low as 5V. The
• Negative Output Voltage Applications
LMZ14202H only requires three external resistors
and four external capacitors to complete the power
solution. The LMZ14202H is a reliable and robust
design with the following protection features: thermal
shutdown, input under-voltage lockout, output over-
voltage protection, short-circuit protection, output
current limit, and allows startup into a pre-biased
output. A single resistor adjusts the switching
frequency up to 1 MHz.
Figure 1. Easy to use PFM 7 pin package
10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)
θ
JA
= 16°C/W, θ
JC
= 1.9°C/W
RoHS Compliant
Peak Reflow Case Temp = 245°C
Power Module SMT Guidelines (1) EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007.
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.
2SIMPLE SWITCHER is a registered trademark of Texas Instruments.
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2013, 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.