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LMR51603XQDBVRQ1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LMR51603XQDBVRQ1 product

LMR51603XQDBVRQ1

Voltage Regulators - DC DC Switching Regulators

65 V buck regulator300 mAAEC-Q100PFMSOT-23-6synchronous buck

LMR51603XQDBVRQ1 is a 65 V automotive synchronous buck regulator delivering up to 300 mA with 400 kHz PFM operation and an adjustable output.

Best for

  • Low-current automotive rails from wide input supplies
  • Body electronics and lighting modules
  • Industrial low-power buck conversion

Avoid if

  • A fixed switching frequency is required at light load
  • Output current exceeds 300 mA continuous

Check before use

  • Verify 70 V transient exposure is sufficient for the system
  • Use a 0.1 µF X5R or X7R bootstrap capacitor between CB and SW
  • Keep input bypass capacitance close to VIN and GND

Key specifications

Input voltage
4 V to 65 V
Output current
300 mA continuous
Output voltage
0.8 V to 28 V adjustable
Switching frequency
400 kHz
Package
SOT-23-6 (DBV)

Compliance & Environment

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

Application

Automotive body electronicsAutomotive lightingIndustrial power rails

Datasheet

2a131e04b1b9ae2389caee1adee13161_LMR51603XQDBVRQ1.pdf

800 KB

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CAD Models

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3D Model
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Alternative components

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Design and risk insights

Questions & answers

LMR51603XQDBVRQ1 is a Texas Instruments automotive-grade synchronous step-down DC/DC converter. It accepts 4 V to 65 V input voltage and can supply up to 300 mA.