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LT3991EMSE#PBF AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LT3991EMSE#PBF product

LT3991EMSE#PBF

Voltage Regulators - DC DC Switching Regulators

DC-DC ConverterBuck RegulatorLow Quiescent Current

The LT3991EMSE#PBF is a high-voltage, low-quiescent current step-down DC-DC regulator designed for automotive and industrial applications.

Best for

  • Automotive battery regulation
  • Industrial control systems
  • Low-power battery-operated devices

Avoid if

  • Applications requiring output currents significantly higher than 1.2A
  • Designs where space is extremely limited for external passive components

Check before use

  • Thermal dissipation requirements
  • Input voltage transients

Key specifications

Input Voltage
4.3V to 55V
Output Current
1.2A
Quiescent Current
2.8µA

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
REACH Unaffected
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.39.0001

Application

AutomotiveIndustrial

Datasheet

DSANUWW0025736.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LT3991EMSE#PBF: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a 55V, 1.2A step-down switching regulator from Analog Devices, optimized for low-power consumption with a 2.8µA quiescent current.