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Alternatives to Renesas Electronics Corporation ISL78227ARZ

Renesas Electronics Corporation ISL78227ARZ and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for Renesas Electronics Corporation ISL78227ARZ

ISL78227ARZ compared against its qualified second sources
ISL78227ARZRenesas Electronics CorporationLTC3784IUFD#PBFAnalog Devices Inc.ISL78229ARZRenesas Electronics Corporation+1more
FFF CompatibilityThe LTC3784 uses a 28-pin layout with totally different pinout assignments compared to the 32-pin target part.The physical package is a smaller 28-QFN (4x5mm) compared to the 32-QFN (5x5mm) of the target part.Both are dual-phase, synchronous boost controllers capable of handling up to 60V and outputting up to 60V with highly efficient transistor drivers.The ISL78229ARZ uses a larger 40-pin layout, whereas the ISL78227ARZ uses a 32-pin layout. Pinouts and assignments are entirely different.The physical package is a larger 40-QFN (6x6mm) compared to the 32-QFN (5x5mm) of the target part.Both are 2-phase synchronous step-up controllers supporting 5V to 55V input/output operation (60V transient) with identical basic electrical performance, though the ISL78229 adds PMBus capability.
AI Summary

ISL78227ARZ by Renesas Electronics Corporation: Boost Regulator Positive Output Step-Up DC-DC Controller IC 32-QFN (5x5).

The LTC3784 is a high-performance, second-source alternative from Analog Devices that natively supports 2-phase synchronous boost operation. It extends the input range up to 60V, though its smaller 28-QFN package requires a layout redesign.

  • True independent 2-phase single-output synchronous boost operation in a single IC
  • Wider input voltage range of 4.5V to 60V (fully covers 5V to 55V target)
  • High light-load efficiency with selectable Burst Mode, Pulse-Skiipping, or CCM
  • Requires board redesign due to a different package size and pinout
  • Slightly narrower switching frequency range (105kHz to 760kHz vs 50kHz to 1.1MHz)

The ISL78229ARZ is a sibling variant within the same Renesas family. It offers the same core 2-phase synchronous boost performance with the addition of PMBus telemetry and NTC thermal sensing, but it requires a board redesign due to its larger 40-pin 6x6mm footprint.

  • Same Renesas family line guaranteeing similar internal boost control algorithms and timing
  • Adds I2C and PMBus digital interface for extensive telemetry and configuration
  • Adds NTC thermistor input for direct thermal monitoring and protection
  • Requires a complete PCB layout redesign due to different package size and pin count
  • Larger package footprint occupies slightly more board space
Lifecycle StatusActiveActiveActive
Market AvailabilityNon-stockIn stockNon-stock
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