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LMR34215FAQRNXRQ1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LMR34215FAQRNXRQ1 product

LMR34215FAQRNXRQ1

Voltage Regulators - DC DC Switching Regulators

synchronous buckautomotiveAEC-Q1001.5 A42 V input400 kHzforced PWMadjustable output

LMR34215FAQRNXRQ1 is a 400 kHz forced-PWM automotive synchronous buck regulator for adjustable outputs up to 1.5 A from a 4.2 V to 42 V input.

Best for

  • Automotive wide-input rails requiring adjustable regulated output
  • Applications where fixed-frequency PWM operation is preferred

Avoid if

  • Applications requiring the lowest possible no-load input current
  • Designs without sufficient PCB area for thermal and EMI control

Check before use

  • Input voltage transients remain within the 4.2 V to 42 V recommended operating range
  • Inductor saturation current exceeds applicable current-limit conditions
  • VQFN-HR layout follows the recommended VIN, PGND, SW, BOOT, and feedback routing guidance

Key specifications

Input voltage
4.2 V to 42 V
Output current
1.5 A maximum
Switching frequency
400 kHz
Operating mode
Forced PWM
Qualification
AEC-Q100 Grade 1

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
MSL 2, 260 °C, 1 year
ECCN
-
HTSUS
-

Application

Automotive power railsADAS camera modulesBody control modulesWide-input DC/DC power

Datasheet

f9f4ccfa2571d2823f432702024d87da.pdf

800 KB

Datasheet AI

CAD Models

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Alternative components

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Design and risk insights

Questions & answers

LMR34215FAQRNXRQ1 is a Texas Instruments automotive-qualified synchronous buck regulator. It accepts 4.2 V to 42 V input and supplies up to 1.5 A through integrated high-side and low-side MOSFETs.