LT8301

RECOMMENDED FOR NEW DESIGNS

42VIN Micropower No-Opto Isolated Flyback Converter with 65V/1.2A Switch

Part Models
18
1ku List Price
Starting From $3.31

Part Details

  • AEC-Q100 Qualified for Automotive Applications
  • 2.7V to 42V Input Voltage Range
  • 1.2A, 65V Internal DMOS Power Switch
  • Low Quiescent Current:
    • 100µA in Sleep Mode
    • 350µA in Active Mode
  • Boundary Mode Operation at Heavy Load
  • Low-Ripple Burst Mode® Operation at Light Load
  • Minimum Load <0.5% (Typ) of Full Output
  • VOUT Set with a Single External Resistor
  • No Transformer Third Winding or Opto-Isolator Required for Regulation
  • Accurate EN/UVLO Threshold and Hysteresis
  • Internal Compensation and Soft-Start
  • Output Short-Circuit Protection
  • 5-Lead TSOT-23 Package
LT8301
42VIN Micropower No-Opto Isolated Flyback Converter with 65V/1.2A Switch
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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Ideal Diode Bridge 1
LT4320
LT4320-1
Ideal Diode Bridge Controller
Surge Stopper, Overvoltage, and Overcurrent Protection 1
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Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
DC2737A

LT8301ES5 Demo Board | No-Opto Isolated Flyback Converter, VIN = 10V to 32V, VOUT = 5V @ up to 700mA

Product Details

Demonstration circuit 2737A is an isolated flyback converter featuring the LT8301. The demo circuit outputs 5V from input 10V to 32V, with a nominal 24V. The output current capability increases with the input voltage. The standby input current of the demo circuit is less than 950μA (typical) at VIN = 24V.

eval board
DC2138B

LT8301ES5 Isolated Demo Board | No-Opto Flyback, 10V ≤ VIN ≤ 32V, VOUT = 5V @ 0.7A to 1A

Product Details

Demonstration circuit 2138B is an isolated flyback converter featuring the LT8301. This demo circuit outputs 5V from a 10V to 32V input, with a nominal of 24V. The output current capability increases with the input voltage. The standby input current of the demo circuit is less than 950μA (typical) at VIN = 24V.

DC2737A
LT8301ES5 Demo Board | No-Opto Isolated Flyback Converter, VIN = 10V to 32V, VOUT = 5V @ up to 700mA
DC2138B
LT8301ES5 Isolated Demo Board | No-Opto Flyback, 10V ≤ VIN ≤ 32V, VOUT = 5V @ 0.7A to 1A

Reference Designs

Figure 1. CN0550 Simplified Block Diagram
CN0550 Circuits from the lab

Low/Full/High-Speed USB 2.0 Isolator with Isolated Power

Features and Benefits

  • Isolated Low-speed, Full-speed, and High-speed USB 2.0
  • Auto Negotiation of USB Interface Speed
  • Delivers Isolated Power from the Host
  • Isolation Rating up to 1.75kV RMS
  • Standard USB Type A Connectors onboard
4-Channel Multiplexed HART Analog Output Circuit
CN0418 Circuits from the lab

Completely Isolated 4-Channel Analog Output Circuit for PLC/DCS Systems with HART

Features and Benefits

  • 4-Channels
  • +/- 10V , 4-20mA outputs
  • HART Compatible
  • Dynamic Power Control
  • Digital Slew Rate Limiting
CN0550
Low/Full/High-Speed USB 2.0 Isolator with Isolated Power
CN0418
Completely Isolated 4-Channel Analog Output Circuit for PLC/DCS Systems with HART

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