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Texas Instruments LM5141-Q1 | Demoboard LM5141QRGEVM
Wide-Input 2.2MHz Low-Iq Synchronous Buck Controller
Overview
| Topology | Buck Converter |
| Input voltage | 5.5-42 V |
| Output 1 | 5 V / 5 A |
| IC revision | A |
Description
The LM5141QRGEVM evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides a 5.0V @ 5A. The nonomal input voltage range is 8V-18V.
Features
Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4B
VIN: 3.8 V to 65 V (70 V Absolute Maximum)Output: Fixed 3.3 V, 5 V, or Adjustable From1.5 V to 15 V with ±0.8% AccuracyFixed 2.2-MHz or 440-kHz Switching Frequency with ±5% AccuracyHigh-Side and Low-Side Gate Drive With Slew-Rate ControlOptional Frequency Shift by Varying an Analog Voltage or RT ResistorOptional Synchronization to an External ClockOptional Spread SpectrumShutdown Mode IQ: 10 µA TypicalLow Standby Mode IQ: 35 µA Typical75-mV Current Limit Threshold with ±0.9% AccuracyExternal Resistor or DCR Current SensingOutput Enable Logic InputHiccup Mode for Sustained OverloadPower-Good Indication OutputSelectable Diode Emulation or Forced Pulse-Width Modulation24-pin VQFN Package With Wettable Flanks
Typical applications
- Infotainment Systems / Instrumentation Clusters / Advanced Driver Assistance Systems (ADAS)
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Mount | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | RESR(mΩ) | ILeak(µA) | DF(%) | Ø D(mm) | L(mm) | Packaging | Pins | Type | H(mm) | Working Voltage(V (AC)) | Operating Temperature | Color | Gender | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PDF SMT Power Inductor, 1.8 µH, 14.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance1.8 µH | Rated Current14.5 A | Saturation Current12.8 A | DC Resistance4.5 mΩ | Self Resonant Frequency74 MHz | MountSMT | – | – | – | – | – | – | – | – | Length10.2 mm | – | Pins2 | – | Height6.1 mm | – | Operating Temperature -40 °C up to +150 °C | – | – | ||||
 | WCAP-PSLP Aluminum Polymer Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-PSLP Aluminum Polymer Capacitors | – | – | – | – | – | MountV-Chip SMT | Capacitance82 µF | Rated Voltage16 V (DC) | Endurance 2000 | Ripple Current2200 mA | ESR35 mΩ | Leakage Current400 µA | Dissipation Factor8 % | Diameter6.3 mm | Length5.8 mm | Packaging15" Tape & Reel | – | – | – | – | Operating Temperature -55 °C up to +105 °C | – | – | ||||
 | WR-PHD Jumper, –, 3 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | Rated Current3 A | – | – | – | – | – | – | – | – | – | – | – | – | Length2.44 mm | PackagingBag | Pins1 | – | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorBlack | GenderJumper | |||
 | WR-PHD Pin Header - Single, –, 3 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | Rated Current3 A | – | – | – | MountTHT | – | – | – | – | – | – | – | – | Length5.08 mm | PackagingBag | Pins2 | TypeStraight | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | |||
 | WR-PHD Pin Header - Single, –, 3 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | Rated Current3 A | – | – | – | MountTHT | – | – | – | – | – | – | – | – | Length7.62 mm | PackagingBag | Pins3 | TypeStraight | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header |