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reference designLM5141 | Demoboard PMP20682

Texas Instruments LM5141 | Demoboard PMP20682

Synchronous Buck Converter for Automotive Cluster Reference Design

Overview

TopologyBuck Converter
Input voltage5-40 V
Output 13.3 V / 10 A
IC revisionB

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

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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
SamplesAvailability & Sample
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7447798180
SPECWE-PDF SMT Power Inductor, 1.8 µH, 12.8 A
Simu­lation
Availability
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Downloads9 files

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
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Operating Temperature -40 °C up to +150 °C
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Rated Current14.5 A
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Height6.1 mm
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74279224101
SPECWE-MPSB EMI Multilayer Power Suppression Bead, –, –
Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MPSB EMI Multilayer Power Suppression Bead
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DC Resistance5 mΩ
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MountSMT 
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Length5.6 mm
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Operating Temperature -55 °C up to +125 °C
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Impedance @ 100 MHz100 Ω
Maximum Impedance160 Ω
Maximum Impedance1000 MHz 
Rated Current7 A
Impedance @ 1 GHz160 Ω
Height1.8 mm
TypeHigh Current 
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60900213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
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Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Pins1 
Length2.44 mm
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +125 °C
ColorBlack 
GenderJumper 
PackagingBag 
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Rated Current3 A
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61300211121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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MountTHT 
Pins2 
Length5.08 mm
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
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GenderPin Header 
PackagingBag 
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Rated Current3 A
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TypeStraight 
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61300311121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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MountTHT 
Pins3 
Length7.62 mm
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
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GenderPin Header 
PackagingBag 
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Rated Current3 A
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TypeStraight 
–Check availability