LT8303IS5#TRMPBF

LT8303 is a micropower high voltage isolated flyback converter. 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 a single external resistor. Internal compensation and soft-start further reduce external component count. 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. It operates from an input voltages range of 5.5V to 100V and can deliver upto 5W of isolated output power. It is used in applications such as isolated telecom, datacom, automotive, industrial, and medical power supplies, isolated auxiliary/housekeeping power supplies.

• Input voltage range from 5.5V to 100V
• 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
• VIN quiescent current is 70µA typical at (TA = 25°C, VIN = 24V)
• Switch on-resistance is 3.2 ohm typical at (SW = 100mA, TA = 25°C, VIN = 24V)
• Maximum switching frequency is 350KHz typical at (TA = 25°C, VIN = 24V)
• Operating temperature range from -40°C to 125°C
• Package style is 5-lead plastic TSOT-23

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party