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LM27342

Texas Instruments
Part Number LM27342
Manufacturer Texas Instruments
Description DC-DC Regulator
Published May 5, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM27341, LM27342, LM27341-Q1, ...
Datasheet PDF File LM27342 PDF File

LM27342
LM27342

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM27341, LM27342, LM27341-Q1, LM27342-Q1 SNVS497F – NOVEMBER 2008 – REVISED SEPTEMBER 2016 LM2734x and LM2734x-Q1 2-MHz, 1.
5-A or 2-A, Wide Input Range, Step-Down, DC-DC Regulator With Frequency Synchronization 1 Features •1 Space-Saving, 3 mm × 3 mm 10-Pin WSON and MSOP-PowerPAD Packages • Wide Input Voltage Range: 3 V to 20 V • Wide Output Voltage Range: 1 V to 18 V • LM27341 Delivers 1.
5-A Maximum Output Current • LM27342 Delivers 2-A Maximum Output Current • High Switching Frequency: 2 MHz • Frequency Synchronization: 1 MHz < fSW < 2.
35 MHz • 150-mΩ NMOS Switch With Internal Bootstrap Supply • 70-nA Shutdown Current • Internal Voltage Reference Accuracy of 1% • Peak Current-Mode, PWM Operation • Thermal Shutdown • LM27341-Q1 and LM27342-Q1 are AEC-Q100 Grade 1 Qualified and Manufactured on an Automotive Grade Flow 2 Applications • Local 12-V to Vcore Step-Down Converters • Radio Power Supply • Core Power in HDDs • Set-Top Boxes • Automotive • USB Powered Devices • DSL Modems 3 Description The LM2734x and LM2734x-Q1 regulators are monolithic, high-frequency, PWM step-down DC-DC converters in 10-pin WSON and 10-pin MSOPPowerPAD packages.
They contain all the active functions to provide local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.
With a minimum of external components, the LM2734x and LM2734x-Q1 are easy to use.
The ability to drive 1.
5-A or 2-A loads respectively, with an internal 150-mΩ NMOS switch results in the best power density available.
The world-class control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion.
Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.
35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors.
Even though the operating frequency is very high, efficiencies up to 90% ...


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