LT8302 42 VIN Isolated Flyback Converters

Linear Technology’s LT8302 converters for isolated power supplies are found in automotive, industrial, and medical applications

Image of Linear Technology's LT8302, 42 VIN Isolated Flyback ConvertersLTC’s LT8302 is a monolithic micropower isolated flyback converter that operates from an input voltage range of 2.8 V to 42 V and delivers up to 18 W of isolated output power. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with two external resistors and a third optional temperature compensation resistor. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery. The converter comes in an 8-SOIC-EP packages with temperature range up to -55°C to +150°C. The LT8302 is perfect for isolated power supplies found in automotive, industrial, and medical applications.

Image of Linear Technology's LT8302, 42 VIN Isolated Flyback Converters Typical Applications
Image of Linear Technology's LT8302, 42 VIN Isolated Flyback Converters Chart
Features
  • Step-up/step-down
  • Positive or negative, isolation capable
  • Current output: 3.6 A
  • Low quiescent current:
    • 106 μA in sleep mode
    • 380 μA in active mode

Applications

  • Isolated power supplies for:
    • Automotive, industrial, medical 
  • Isolated auxiliary/housekeeping power supplies
  • Voltage supply: 2.8 V to 42 V
  • Quasi-resonant boundary mode operation at heavy load
  • Low ripple Burst Mode® operation at light load
  • Minimum load <0.5% (typ.) of full output
  • Temperature operating range: -55°C to +150°C
  • Package/case: 8-SOIC-EP

LT8302 42 VIN Isolated Flyback Converters

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
LT8302ES8E#PBF datasheet linkIC REG FLYBCK INV ISO 3.6A 8SOICLT8302ES8E#PBFIC REG FLYBCK INV ISO 3.6A 8SOIC105 - Immediate
LT8302ES8E#PBF product page link
LT8302MPS8E#PBF datasheet linkIC REG FLYBCK INV ISO 3.6A 8SOICLT8302MPS8E#PBFIC REG FLYBCK INV ISO 3.6A 8SOIC130 - Immediate
LT8302MPS8E#PBF product page link
LT8302IS8E#PBF datasheet linkIC REG FLYBCK INV ISO 3.6A 8SOICLT8302IS8E#PBFIC REG FLYBCK INV ISO 3.6A 8SOIC0LT8302IS8E#PBF product page link
LT8302HS8E#PBF datasheet linkIC REG FLYBCK INV ISO 3.6A 8SOICLT8302HS8E#PBFIC REG FLYBCK INV ISO 3.6A 8SOIC0LT8302HS8E#PBF product page link

Evaluation Board

ImageManufacturer Part NumberDescriptionMain PurposeOutputs and TypeVoltage - OutputAvailable QuantityView Details
DC2014A datasheet linkBOARD EVAL FOR LT8302ES8EDC2014ABOARD EVAL FOR LT8302ES8EDC/DC, Step Down1, Isolated5V6 - Immediate
DC2014A product page link
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Published: 2018-01-11