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LMR38020FSQDDARQ1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LMR38020FSQDDARQ1 product

LMR38020FSQDDARQ1

Voltage Regulators - DC DC Switching Regulators

80 V buck regulator2 A synchronous converterAEC-Q100 Grade 1FPWMSpread spectrumHSOIC PowerPAD

LMR38020FSQDDARQ1 is a 2 A AEC-Q100 Grade 1 synchronous buck regulator for automotive and other wide-input DC/DC rails up to 80 V. This ordering variant provides forced-PWM operation for more consistent light-load switching behavior.

Best for

  • Automotive 48 V and wide-input power rails
  • Motor-control auxiliary supplies
  • Battery-management electronics
  • Applications needing FPWM behavior at light load

Avoid if

  • The design requires output current above 2 A continuous
  • Light-load efficiency is more important than fixed-frequency operation
  • Input voltage can exceed the device transient and absolute maximum ratings without external protection

Check before use

  • Input surge and load-dump protection
  • Thermal margin at maximum ambient temperature
  • Inductor saturation current and ripple current
  • Effective capacitance under DC bias
  • Layout of input capacitor, SW node, thermal pad, and feedback path

Key specifications

Input voltage
4.2 V to 80 V
Output current
2 A continuous
Switching mode
Forced PWM (FPWM)
Switching frequency
200 kHz to 2.2 MHz adjustable
Automotive grade
AEC-Q100 Grade 1
Package
8-pin HSOIC PowerPAD

Compliance & Environment

RoHS
Yes
REACH
-
MSL
Level 2, 260 °C, 1 year
ECCN
-
HTSUS
-

Application

Automotive ECU auxiliary rails48 V mild-hybrid power systemsMotor-control electronicsBattery-management systems

Datasheet

sszqrm3

800 KB

Datasheet AI

CAD Models

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Alternative components

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Design and risk insights

Questions & answers

LMR38020FSQDDARQ1 is a Texas Instruments automotive synchronous step-down converter in an 8-pin HSOIC PowerPAD package. It supports 4.2 V to 80 V input, up to 2 A DC output current, adjustable output voltage, and forced-PWM operation.