LMR14006 Regulator Datasheet

LMR14006 Datasheet PDF, Equivalent


Part Number

LMR14006

Description

40V 600mA Buck Regulator

Manufacture

etcTI

Total Page 25 Pages
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LMR14006
LMR14006
SNVSA10B – NOVEMBER 2013 – REVISED NOVEMBER 2014
LMR14006 SIMPLE SWITCHER® 40 V 600 mA Buck Regulator With High Efficiency Sleep
Mode
1 Features
1 Ultra Low 28 µA Standby Current in Sleep Mode
• Input Voltage Range 4 V to 40 V
• 1 µA Shutdown Current
• High Duty Cycle Operation Supported
• Output Current up to 600 mA
• 1.1 MHz and 2.1 MHz Switching Frequency
• Internal Compensation
• High Voltage Enable Input
• Internal Soft Start
• Over Current Protection
• Over Temperature Protection
• Small Overall Solution Size (TSOT-6L Package)
2 Applications
• Industrial Distributed Power Systems
• Automotive
• Battery Powered Equipment
• Portable Handheld Instruments
• Portable Media Players
3 Description
The LMR14006 is a PWM DC/DC buck (step-down)
regulator. With a wide input range of 4 V-40 V, it is
suitable for a wide range of application from industrial
to automotive for power conditioning from an
unregulated source. The regulator’s standby current
is 28 µA in sleep mode, which is suitable for battery
operating systems. An ultra low 1 µA current can
further prolong battery life in shutdown mode.
Operating frequency is fixed at 1.1 MHz (X version)
and 2.1 MHz (Y version) allowing the use of small
external components while still being able to have low
output ripple voltage. Soft-start and compensation
circuits are implemented internally, and these allow
the device to be used with minimized external
components. The LMR14006 is optimized for up to
600 mA load current which has a 0.765 V typical
feedback voltage. The device has built-in protection
features such as pulse by pulse current limit, thermal
sensing and shutdown due to excessive power
dissipation. The LMR14006 is available in a low
profile TSOT-6L package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMR14006
TSOT-6L
2.9mm × 1.6 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
VIN
Cin
VIN
SHDN
GND
LMR14006
CB
Cboot L1
SW
D1
R1
FB
R2
Cout
Figure 1. Typical Application Schematic
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.

LMR14006
LMR14006
SNVSA10B – NOVEMBER 2013 – REVISED NOVEMBER 2014
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......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 Handling Ratings ...................................................... 4
6.3 Recommended Operating Conditions ..................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics .......................................... 5
6.7 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 8
8 Applications and Implementation ...................... 11
8.1 Typical Applications ................................................ 11
9 Layout ................................................................... 16
9.1 Layout Guidelines ................................................... 16
10 Device and Documentation Support ................. 17
10.1 Trademarks ........................................................... 17
10.2 Electrostatic Discharge Caution ............................ 17
10.3 Glossary ................................................................ 17
11 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (November 2013) to Revision A
Page
• Deleted the other part number LMR14003 from the rest of the document ........................................................................... 1
• Added Device Information and Handling Rating tables, Feature Description, Application and Implementation, ,
Layout, Device and Documentation Support, and Mechanical, Packaging, and Orderable Information sections;
moved some curves to Application Curves section................................................................................................................ 1
• Changed from 2kV to 1kV ...................................................................................................................................................... 4
Changes from Revision A (September 2014) to Revision B
Page
• Changed from -0.3 to -1 ......................................................................................................................................................... 4
• Changed from -0.3 to -1 ......................................................................................................................................................... 4
2 Submit Documentation Feedback
Product Folder Links: LMR14006
Copyright © 2013–2014, Texas Instruments Incorporated


Features LMR14006 SNVSA10B – NOVEMBER 2013 – REVISED NOVEMBER 2014 LMR14006 SIMPLE S WITCHER® 40 V 600 mA Buck Regulator Wi th High Efficiency Sleep Mode 1 Featur es •1 Ultra Low 28 µA Standby Curren t in Sleep Mode • Input Voltage Range 4 V to 40 V • 1 µA Shutdown Current • High Duty Cycle Operation Supporte d • Output Current up to 600 mA • 1 .1 MHz and 2.1 MHz Switching Frequency • Internal Compensation • High Volt age Enable Input • Internal Soft Star t • Over Current Protection • Over Temperature Protection • Small Overal l Solution Size (TSOT-6L Package) 2 App lications • Industrial Distributed Po wer Systems • Automotive • Battery Powered Equipment • Portable Handheld Instruments • Portable Media Players 3 Description The LMR14006 is a PWM D C/DC buck (step-down) regulator. With a wide input range of 4 V-40 V, it is su itable for a wide range of application from industrial to automotive for power conditioning from an unregulated source. The regulator’s standby current is 28 µA in sleep mode, which .
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