LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
TI LM5140QRWGTQ1 product image
  • LM5140QRWGTQ1 thumbnail 1
  • LM5140QRWGTQ1 thumbnail 2
  • LM5140QRWGTQ1 thumbnail 3
  • Pinout
  • Footprint
Images for reference only

TI LM5140QRWGTQ1RoHS

Manufacturer
TI
MPN
LM5140QRWGTQ1
LCSC Part #
C201623
Packaging
VQFN-40-EP(6x6)
Customer #
Key Attributes
Wide Input Range Dual Synchronous Buck Controller
Datasheetpdf iconTI LM5140QRWGTQ1
In-Stock: 237
237 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 6.1721$ 6.17
10+$ 5.8806$ 58.81
30+$ 5.7031$ 171.09
100+$ 5.5533$ 555.33
Standard Packaging250/Full Reel
Better price for more quantity?
$

Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingVQFN-40-EP(6x6)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Overcurrent Protection;Operating status indication
Number of Channels2
TopologyBuck
Operating Voltage3.8V~65V
Switch tube (built-in/external)External
Output Voltage1.5V~15V
Operating Temperature-40℃~+150℃@(TJ)
Output Current-
Frequency - Switching440kHz
Output TypeAdjustable
FunctionStep-down type
Quiescent Current35uA
Report an ErrorShow similar products (0) >

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging250
Sales UnitPiece

Introduction

AI Translation

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 two controller channels switching 180° out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.

Features

AI Translation
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following
  • Device Temperature Grade 1: -40°C to +125°C 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

Applications

AI Translation
  • Automotive Electronics
  • Infotainment Systems
  • Instrument Clusters
  • Advanced Driver Assistance (ADAS)