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LM5157QRTERQ1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM5157QRTERQ1 product

LM5157QRTERQ1

Voltage Regulators - DC DC Switching Regulators

LM5157-Q1automotiveboostSEPICflyback50 V switchAEC-Q100

LM5157QRTERQ1 is a TI automotive-qualified non-synchronous controller for boost, SEPIC, and flyback converters, integrating a 50 V power MOSFET with a 6.5 A minimum peak-current limit.

Best for

  • Automotive wide-input boost converters
  • SEPIC voltage regulation
  • Non-isolated or isolated flyback supplies

Avoid if

  • A synchronous rectification controller is required
  • The switching node can exceed 50 V
  • The design requires output voltage above 48 V without an external multiplier stage

Check before use

  • Confirm peak inductor current remains below the applicable current-limit margin
  • Verify thermal performance of the integrated MOSFET and external diode
  • Keep the COUT-D1-SW-PGND switching loop compact

Key specifications

Input supply range
1.5 V to 45 V when BIAS ≥ 2.9 V
Integrated switch
50 V, 6.5 A minimum peak current limit
Switching frequency
100 kHz to 2.2 MHz
Package
16-pin 3.0 mm × 3.0 mm WQFN

Compliance & Environment

RoHS
Not applicable
REACH
-
MSL
Level-2-260C-1 YEAR
ECCN
-
HTSUS
-

Application

Automotive power conversionBoost and SEPIC regulatorsFlyback power supplies

Datasheet

sszt183

800 KB

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CAD Models

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Alternative components

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Questions & answers

LM5157QRTERQ1 is the orderable TI LM5157-Q1 automotive-grade wide-input non-synchronous switching controller. It integrates a 50 V N-channel MOSFET and uses peak-current-mode control for boost, SEPIC, and flyback power stages.