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reference designLM61430-Q1

Texas Instruments LM61430-Q1

Automotive 3-V to 36-V, 3-A, low-noise synchronous step-down converter

Overview

TopologyBuck Converter
Input voltage5-36 V
Switching frequency200-2200 kHz
Output 15 V / 3 A
IC revisionA

Description

The LM61430-Q1 is a high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 3 A of output current is delivered over a wide input range from 3.0 V to 36 V tolerant of 42 V, easing input surge protection design. The LM61430-Q1 implements soft recovery from dropout eliminating overshoot on the output.

Features

  • AEC-Q100 qualified for automotive applications
  • Temperature grade 1: –40°C to +150°C, TJ
  • Functional Safety-Capable
  • Documentation available to aid functional safety system design
  • Optimized for ultra low EMI requirements
  • HotRod™ package minimizes switch node ringing
  • Parallel input path minimizes parasitic inductance
  • Adjustable SW node rise time
  • Designed for automotive applications
  • Supports 42-V automotive load dump
  • ±1% total output regulation accuracy
  • VOUT adjustable from 1 V to 95% of VIN
  • High efficiency power conversion at all loads
  • 7-µA nonswitching current at 13.5 VIN, 3.3 VOUT
  • External bias option for improved efficiency
  • Suitable for scalable power supplies
  • Pin compatible with:
  • LM61435-Q1 (36 V, 3.5 A, adjustable fsw)
  • LM61440-Q1 (36 V, 4 A, adjustable fSW)
  • LM61460-Q1 (36 V, 6 A, adjustable fSW)

Typical applications

  • Automotive ADAS and body electronics, Automotive infotainment and cluster: head unit, media hub, USB charge, display

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,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
ISAT,10%(A)
RDC(mΩ)
Material
Qty.
SamplesAvailability & Sample
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74438356010
SPECWE-MAPI SMT Power Inductor, 1 µH, 10.1 A
Simu­lation
Availability
–
Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1 µH
Performance Rated Current10.1 A
Saturation Current @ 30%11.5 A
DC Resistance12 mΩ
Self Resonant Frequency55 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%5.3 A
–
–
Packaging Unit1000 
–Check availability
74438356015
SPECWE-MAPI SMT Power Inductor, 1.5 µH, 8.6 A
Simu­lation
Availability
–
Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current8.6 A
Saturation Current @ 30%10.2 A
DC Resistance16 mΩ
Self Resonant Frequency48 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%4.8 A
–
–
Packaging Unit1000 
–Check availability
744316220
SPECWE-HCI SMT Flat Wire High Current Inductor, 2.2 µH, 9.2 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
Inductance2.2 µH
Performance Rated Current9.2 A
Saturation Current @ 30%7.5 A
–
Self Resonant Frequency108 MHz
–
MountSMT 
Saturation Current @ 10%3.5 A
DC Resistance11.3 mΩ
MaterialSuperflux 
Packaging Unit1500 
–Check availability