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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 | Product series | L (µH) | ISAT (A) | RDC max. (mΩ) | Mount | C | VR (V (DC)) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | RESR (mΩ) | ILeak (µA) | DF (%) | Ø D (mm) | L (mm) | Pins | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Color | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7447798180 | SPEC | 8 files | WE-PDF SMT Power Inductor | 1.8 | 12.8 | 4.5 | – | – | – | – | – | – | – | – | – | – | 10.2 | – | – | 6.1 | – | – | 14.5 | – | – | ||
 | 875105344009 | SPEC | 7 files | WCAP-PSLP Aluminum Polymer Capacitors | – | – | – | V-Chip SMT | 82 µF | 16 | 2000 | -55 °C up to +105 °C | 2200 | 35 | 400 | 8 | 6.3 | 5.8 | – | – | – | – | – | – | 15" Tape & Reel | – | ||
 | 60900213421 | SPEC | – | 3 files | WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point | – | – | – | – | – | – | – | – | – | – | – | – | – | 2.44 | 1 | – | – | Jumper | – | 3 | Bag | Black | |
 | 61300211121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | THT | – | – | – | – | – | – | – | – | – | 5.08 | 2 | Single | – | Pin Header | Straight | 3 | Bag | – | |
| 61300311121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | THT | – | – | – | – | – | – | – | – | – | 7.62 | 3 | Single | – | Pin Header | Straight | 3 | Bag | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7447798180 | SPEC | |
| 875105344009 | SPEC | |
| 60900213421 | SPEC | – |
| 61300211121 | SPEC | – |
| 61300311121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | ISAT (A) | RDC max. (mΩ) | Mount | C | VR (V (DC)) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | RESR (mΩ) | ILeak (µA) | DF (%) | Ø D (mm) | L (mm) | Pins | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Color | Samples |
|---|