Datasheet Texas Instruments LMR61428

Manufacturer	Texas Instruments
Series	LMR61428

Datasheets

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Status

Packaging

Parametrics

Parameters / Models	LMR61428XMM/NOPB	LMR61428XMMX/NOPB
Duty Cycle(Max), %	70	70
Iq(Typ), mA	0.1	0.1
Operating Temperature Range, C	-40 to 85	-40 to 85
Package Group	VSSOP	VSSOP
Rating	Catalog	Catalog
Regulated Outputs	1	1
Special Features	Enable	Enable
Switch Current Limit(Min), A	2.85	2.85
Switch Current Limit(Typ), A	2.85	2.85
Switching Frequency(Max), kHz	2000	2000
Switching Frequency(Min), kHz	300	300
Type	Converter	Converter
Vin(Max), V	14	14
Vin(Min), V	1.2	1.2
Vout(Max), V	14	14
Vout(Min), V	1.24	1.24

Eco Plan

Application Notes

• Download
  AN-643 EMI/RFI Board Design (Rev. B)
  PDF, 742 Kb, Revision: B, File published: May 3, 2004
  Application Note 643 EMI/RFI Board Design
• Download
  Working With Boost Converters
  PDF, 159 Kb, File published: Jun 15, 2015
  This brief note highlights some of the more common pitfalls when using boost regulators. These includemaximum achievable output current and voltage, short circuit behavior and basic layout issues. It isassumed that the reader is familiar with the basic operation of a boost regulator.
• Download
  Input and Output Capacitor Selection
  PDF, 219 Kb, File published: Sep 19, 2005
• Download
  Basic Calculation of a Boost Converter's Power Stage (Rev. C)
  PDF, 186 Kb, Revision: C, File published: Jan 8, 2014
  This application note gives the equations to calculate the power stage of a boost converter built with an IC with integrated switch and operating in continuous conduction mode. It is not intended to give details on the functionality of a boost converter (see Reference 1) or how to compensate a converter. See the references at the end of this document if more detail is needed.
• Download
  AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)
  PDF, 3.6 Mb, Revision: A, File published: Apr 23, 2013
  This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor.
• Download
  AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)
  PDF, 1.4 Mb, Revision: A, File published: Apr 23, 2013
  This application note provides thermal power analysis techniques for analyzing the power IC.
• Download
  AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)
  PDF, 2.7 Mb, Revision: A, File published: Apr 23, 2013
  This application report shows how to measure the critical points of a bode plot with only an audiogenerator (or simple signal generator) and an oscilloscope. The method is explained in an easy to followstep-by-step manner so that a power supply designer can start performing these measurements in a shortamount of time.
• Download
  Semiconductor and IC Package Thermal Metrics (Rev. C)
  PDF, 201 Kb, Revision: C, File published: Apr 19, 2016
• Download
  AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)
  PDF, 82 Kb, Revision: C, File published: Apr 23, 2013
  When designing a high frequency switching regulated power supply layout is very important. Using agood layout can solve many problems associated with these types of supplies. The problems due to a badlayout are often seen at high current levels and are usually more obvious at large input to output voltagedifferentials. Some of the main problems are loss of regulation at high output current
• Download
  Understanding Boost Power Stages In Switchmode Power Supplies
  PDF, 149 Kb, File published: Mar 4, 1999
  A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the boost power stage only and does not cover control circuits. The report includes detailed steady-stage and small-signal analysis of the boost power stage o
• Download
  AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)
  PDF, 374 Kb, Revision: C, File published: Apr 23, 2013
  This application report provides SIMPLE SWITCHER™ PCB layout guidelines.
• Download
  AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)
  PDF, 2.5 Mb, Revision: C, File published: Apr 24, 2013
  Electromagnetic Interference (EMI) is an unwanted effect between two electrical systems as a result ofeither electromagnetic radiation or electromagnetic conduction. EMI is the major adverse effect caused bythe application of switch-mode power supplies (SMPS). In switching power supplies EMI noise isunavoidable due to the switching actions of the semiconductor devices and resulting disconti
• Download
  AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)
  PDF, 9.2 Mb, Revision: B, File published: Apr 23, 2013
  This thermal application report provides guidelines for the optimal board layout to achieve the best thermalresistance for exposed packages. The thermal resistance between junction-to-ambient (ОёJA) is highlydependent on the PCB (Printed Circuit Board) design factors. This becomes more critical for packageshaving very low thermal resistance between junction-to-case such as exposed pad TSSOP

Model Line

Manufacturer's Classification

• Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Up (Boost)> Boost Converter (Integrated Switch)