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LM26400Y

Texas Instruments
Part Number LM26400Y
Manufacturer Texas Instruments
Description 500-kHz Wide Input Range Buck Regulator
Published Feb 21, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM26400Y SNVS457D – FEBRUARY 2...
Datasheet PDF File LM26400Y PDF File

LM26400Y
LM26400Y

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM26400Y SNVS457D – FEBRUARY 2007 – REVISED OCTOBER 2015 LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator 1 Features •1 Input Voltage Range of 3 V to 20 V • Dual 2-A Output • Output Voltage Down to 0.
6 V • Internal Compensation • 500-kHz PWM Frequency • Separate Enable Pins • Separate Soft-Start Pins • Frequency Foldback Protection • 175-mΩ NMOS Switch • Integrated Bootstrap Diodes • Overcurrent Protection • HTSSOP and WSON Packages • Thermal Shutdown 2 Applications • DTV-LCD • Set-Top Boxes • XDSL • Automotive • Computing Peripherals • Industrial Controls • Points-of-Load 3 Description The LM26400Y device is a monolithic, two-output fixed-frequency PWM step-down DC-DC regulator, in a 16-pin WSON or thermally-enhanced HTSSOP package.
With a minimum number of external components and internal loop compensation, the LM26400Y is easy to use.
The ability to drive 2-A loads with an internal 175-mΩ NMOS switch using state-of-the-art 0.
5-µm BiCMOS technology results in a high-power density design.
The world class control circuitry allows for an ONtime as low as 40 ns, thus supporting high-frequency conversion over the entire input range of 3 V to 20 V and down to an output voltage of only 0.
6 V.
The LM26400Y utilizes peak current-mode control and internal compensation to provide high-performance regulation over a wide range of line and load conditions.
Switching frequency is internally set to 500 kHz, optimal for a broad range of applications in terms of size versus thermal tradeoffs.
Given a nonsynchronous architecture, efficiencies above 90% are easy to achieve.
External shutdown is included, enabling separate turnon and turnoff of the two channels.
Additional features include programmable soft-start circuitry to reduce inrush current, pulse-by-pulse current limit and frequency foldback, integrated bootstrap structure, and thermal shutdown.
Device Information(1) PART NU...


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