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reference designLM5143-Q1 | Demoboard LM5143-Q1EVM-2100

Texas Instruments LM5143-Q1 | Demoboard LM5143-Q1EVM-2100

Dual-channel automotive synchronous buck controller evaluation module

Overview

TopologyBuck Converter
Input voltage3.5-36 V
Output 15 V / 7 A
Output 23.3 V / 7 A
IC revisionB

Description

The LM5143-Q1-EVM2100 high density evaluation module (EVM) is designed to showcase the performance of the LM5143-Q1 high performance, dual-channel, automotive synchronous buck DC/DC buck controller. It operates over a wide input voltage range of 3.5 V to 36 V to deliver fixed 5-V and 3.3-V outputs with better than 1% setpoint accuracy and currents up to 7 A per channel. By virtue of the LM5143-Q1's minimum on-time of 65 ns, operation at very low duty cycle is feasible. The LM5143-Q1 offers a full suite of protection features to ensure protection of the regulator during fault conditions. These include undervoltage lockout to ensure proper operation during voltage-sag conditions, programmable soft-start to reduce inrush current, hiccup-mode overcurrent protection and thermal shutdown. Open-drain PGOOD indicator and SYNC IN / SYNC OUT features are also provided.

Features

  • 3.5-V to 36-V input voltage range
  • 5-V and 3.3-V output voltages with 1% setpoint accuracy
  • Rated for up to 7 A of load current per channel
  • Automotive grade power stage components, including -MOSFETs, inductors and capacitors
  • 2.1-MHz switching synchronizable up or down with external clock
  • Fully assembled, tested and proven PCB layout with small footprint

Typical applications

  • Infotainment systems, instrument clusters, Automotive electronic systems, Advanced driver assistance systems (ADAS)

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
RDC max.(mΩ)
Mount
SamplesAvailability & Sample
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744373460068
SPECWE-LHMI SMT Power Inductor, 0.68 µH, 15.1 A
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance0.68 µH
Performance Rated Current15.1 A
Saturation Current @ 10%15.9 A
Saturation Current @ 30%31.6 A
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Self Resonant Frequency72 MHz
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Packaging Unit1000 
DC Resistance5.5 mΩ
MountSMT 
–Check availability
744325420
SPECWE-HCI SMT Flat Wire High Current Inductor, 4.2 µH, 15.4 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance4.2 µH
Performance Rated Current15.4 A
Saturation Current @ 10%5 A
Saturation Current @ 30%14 A
DC Resistance7.1 mΩ
Self Resonant Frequency33 MHz
MaterialSuperflux 
Packaging Unit700 
DC Resistance7.87 mΩ
MountSMT 
–Check availability