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Texas Instruments LM5141 | Demoboard PMP20682
Synchronous Buck Converter for Automotive Cluster Reference Design
Overview
| Topology | Buck Converter |
| Input voltage | 5-40 V |
| Output 1 | 3.3 V / 10 A |
| IC revision | B |
Description
PMP20682 is a synchronous buck converter reference design utilizing the LM5141-Q1 synchronous buck controller I.C. The design accepts an input voltage of 5V to 40V and provides a 3.3V output capable of supplying 10A of current to the load. An EMI filter is incorporated on the input. Optional frequency dithering and slew rate control are available for additional EMI control. Mounting holes are provided for a bottom-side MOSFET heat sink.
Features
- Peak current-mode control
- Selectable frequency dithering
- Input EMI filter
- Wide input voltage range
- Selectable diode emulation or forced PWM
Typical applications
- Hybrid Cluster with Active Graphics Support / Hybrid Cluster with Informational Graphics Support
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Mount | Pins | L(mm) | Working Voltage(V (AC)) | Operating Temperature | Color | Gender | Packaging | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(A) | Z @ 1 GHz(Ω) | H(mm) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PDF SMT Power Inductor, 1.8 µH, 12.8 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PDF SMT Power Inductor | Inductance1.8 µH | Saturation Current12.8 A | DC Resistance4.5 mΩ | Self Resonant Frequency74 MHz | MountSMT | Pins2 | Length10.2 mm | – | Operating Temperature -40 °C up to +150 °C | – | – | – | – | – | – | Rated Current14.5 A | – | Height6.1 mm | – | ||||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | DC Resistance5 mΩ | – | MountSMT | – | Length5.6 mm | – | Operating Temperature -55 °C up to +125 °C | – | – | – | Impedance @ 100 MHz100 Ω | Maximum Impedance160 Ω | Maximum Impedance1000 MHz | Rated Current7 A | Impedance @ 1 GHz160 Ω | Height1.8 mm | TypeHigh Current | ||||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | – | – | Pins1 | Length2.44 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorBlack | GenderJumper | PackagingBag | – | – | – | Rated Current3 A | – | – | – | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | MountTHT | Pins2 | Length5.08 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | – | – | – | Rated Current3 A | – | – | TypeStraight | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | MountTHT | Pins3 | Length7.62 mm | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | – | – | – | Rated Current3 A | – | – | TypeStraight |