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Texas Instruments LM5141-Q1 | Demoboard LM5141QRGEVM
LM5141QRG Synchronous Buck Converter Evaluation Module
Overview
| Topology | Buck Converter |
| Input voltage | 5.5-42 V |
| Switching frequency | 2000-2400 kHz |
| Output 1 | 5 V / 5 A |
Description
The LM5141-Q1 is a synchronous buck controller,intended for high voltage wide VIN step-downconverter applications. The control method is basedon current mode control. Current mode controlprovides inherent line feed-forward, cycle-by-cyclecurrent limiting, and ease of loop compensation. TheLM5141-Q1 features slew rate control to simplify thecompliance with the CISPR and Automotive EMIrequirements.The LM5141-Q1 has two selectable switchingfrequencies, 2.2 MHz and 440 kHz, and Gate Driverswith Slew Rate Control, for reduced conducted EMI.
Features
The EVM supports the following features and performance capabilities:
- The LM5141-Q1 is Qualified to AEC-Q100 Grade 1 (–40ºC to +125ºC Operating JunctionTemperature)
- VIN 5.5 to 42 V
- Fixed 5-V output, or Adjustable From 1.5–15 V
- Shutdown mode IQ: 10 μA
- Low IQ Standby: 42 μA Typical (Output in Regulation, No Load)
- Fixed 2.2 MHz, or 440 kHz Oscillator Frequency
- Oscillator Can Shift From the Fundamental With a Resistor From the RT Pin to Ground, or an Analog
- Voltage of 0 V to 0.6 V
- The Internal Oscillator can be Synchronized to an External Clock
- Spread Spectrum
- EN Enable Output
- Hiccup Mode for Sustained Overload
- Power Good
- Gate Drive With Slew Rate Control
- Diode Emulation or Forced Pulse-Width Modulation
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 |