DatasheetsPDF.com

LM5140-Q1

Texas Instruments
Part Number LM5140-Q1
Manufacturer Texas Instruments
Published May 13, 2020
Description Wide Input Range Dual Synchronous Buck Controller
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Softwa
Datasheet PDF File LM5140-Q1 PDF File

LM5140-Q1
LM5140-Q1


Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM5140-Q1 SNVSA02A – JANUARY 2016 – REVISED DECEMBER 2016 LM5140-Q1 Wide Input Range Dual Synchronous Buck Controller 1 Features •1 Qualified for Automotive Applications • AEC-Q100 Test Guidance With the Following – Device Temperature Grade 1: –40ºC to +125ºC Ambient Operating Temperature – Device HBM ESD Classification Level 2 – Device CDM ESD Classification Level C4B • Input Operating Range from 3.
8 V to 65 V (70 V Absolute Maximum) • Two Interleaved Buck Controllers With: – VOUT1 Fixed 3.
3 V, 5 V, or Adjustable from 1.
5 V – 15 V, Accuracy ±1% – VOUT2 Fixed 5 V, 8 V, or Adjustable from 1.
5 V – 15 V, Accuracy ±1% • Fixed 2.
2-MHz or 440-kHz Switching Frequency, Accuracy ±7% • Optional Synchronization to an External Clock • SYNC Output Clock for Additional Converters • Shutdown Mode Current: 9 µA Typical • No Load Standby Current: 35 µA Typical (One Channel Operating) • Current Limit Threshold Programmable to 50 mV or 75 mV, Accuracy ±10% • Independent Enable Inputs for VOUT1 and VOUT2 • Hiccup Mode Protection for Sustained Overload • Independent Power Good Outputs • High-Side and Low-Side Gate Drivers With Adjustable Slew Rate Control • Selectable Diode Emulation or Continuous Conduction at Light Load • 40-Pin VQFN Package With Wettable Flanks 2 Applications • Automotive Electronics • Infotainment Systems • Instrument Clusters • Advanced Driver Assistance (ADAS) 3 Description The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN stepdown converter applications.
The control method is based on current mode control.
Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation.
The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements.
The LM5140-Q1 operates at selectable switching frequencies of 2.
2 MHz or 440 kHz with the tw...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)