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Infineon Technologies ICE3AS03LJGXUMA1 — DC-DC Power Modules
Infineon Technologies

Infineon ICE3AS03LJGXUMA1 Flyback Controller, 100kHz, 8-SOIC

MPNICE3AS03LJGXUMA1
End of Life

Infineon CoolSET™ ICE3AS03LJGXUMA1 offline flyback PWM controller, 100kHz switching frequency, 75% duty cycle, 10.5V to 25V Vcc, 8-SOIC package, surface mount, -25°C to 130°C junction temperature.

$0.74447Ref. price · indicative, final on quote
ICE3AS03LJGXUMA1 datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

ICE3AS03LJGXUMA1 Technical Specifications
ParameterValue
Mounting typeSurface Mount
Voltage - start up18 V
Voltage - supply (Vcc (Vdd))10.5V ~ 25V
Frequency100kHz
Duty cycle75%
Operating temperature-25°C ~ 130°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
TopologyFlyback
Case8-SOIC (0.154\", 3.90mm Width)
Fault protectionCurrent Limiting, Open Loop, Over Load, Over Temperature, Over Voltage
Output isolationIsolated
Internal switchNo

Product details

Protection set and operating range

Fault protection covers current limiting, open-loop detection, over-load, over-temperature, and over-voltage — five conditions that cover the common failure modes in a flyback supply.

Package and mounting

Supplied in an 8-pin SOIC (3.90 mm width) for surface-mount assembly. The PG-DSO-8 footprint is shared across Infineon's CoolSET controller family, so a board laid out for this part can take a pin-compatible integrated MOSFET variant if the power stage needs to be revised later. Tape & Reel or Cut Tape options match different production volumes.

Lifecycle and sourcing

Listed as Active with ROHS3 compliance. Sourced through independent distribution; availability and current pricing confirmed against an RFQ.

Frequently asked questions

How does ICE3AS03LJGXUMA1 compare to the ICE2QR2280G1XUMA1?

The ICE2QR2280G1XUMA1 integrates a CoolMOS power switch internally and runs at 52 kHz with a 50% duty cycle, whereas the ICE3AS03LJGXUMA1 is a controller-only part (no internal switch) running at 100 kHz with 75% duty cycle. The ICE2QR2280G1 is a higher-integration, lower-frequency option for compact designs; the ICE3AS03LJGXUMA1 gives the designer freedom to choose an external MOSFET and run at a higher frequency for smaller magnetics.