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LM51561DSSR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM51561DSSR product

LM51561DSSR

DC DC Switching Controllers

wide-inputboost-controllerSEPICflybackWSONhiccup-protection

LM51561DSSR is a non-synchronous peak-current-mode controller for boost, SEPIC, and flyback power converters, with 3.5 V to 60 V BIAS operation and integrated hiccup overload protection.

Best for

  • Wide-input boost, SEPIC, and flyback controller designs
  • Battery-powered and LED bias power supplies
  • Designs requiring programmable switching frequency and hiccup protection

Avoid if

  • A synchronous converter or integrated power stage is required
  • The design cannot accommodate external MOSFET, diode, inductor, and compensation components

Check before use

  • Confirm the BIAS/VCC startup configuration and operating limits
  • Verify duty-cycle, current-limit, gate-charge, thermal, and layout requirements

Key specifications

Operating BIAS range
3.5 V to 60 V; 65 V absolute maximum
Switching frequency
100 kHz to 2.2 MHz
Gate driver
1.5 A peak source/sink
Current-limit threshold
100 mV ±7%
Package
12-pin WSON, 3.00 mm × 2.00 mm nominal

Compliance & Environment

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

Application

Boost convertersSEPIC convertersFlyback convertersBattery-powered supplies

Datasheet

poYBAGHCvEmALcpcACJjMwaNHeI983.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LM51561DSSR: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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PCB Footprint
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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

LM51561DSSR is a 12-pin WSON controller using peak-current-mode control for non-synchronous boost, SEPIC, and flyback converters. The LM51561 option includes hiccup-mode overload protection.