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Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-5
Packaging Cut Tape (CT) | Tape & Reel (TR)
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 650V
Topology Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle -
Frequency - Switching 132.7kHz
Power (Watts) 16 W
Fault Protection -
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width), 14 Leads
Supplier Device Package 16-SO B
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Power Integrations LYT5216D-TL is a versatile offline switcher from the LYTSwitch™-5 series, supporting Flyback, Step-Down (Buck), and Step-Up (Boost) topologies in a single device. It integrates the power switch, offers a 650V breakdown rating, and delivers up to 16 W at a 132.7kHz switching frequency. Housed in a 16-SOIC (14 leads) package and rated for -40°C to 150°C (TJ), it is well suited to compact, thermally demanding AC-DC designs.

  • Multi-topology flexibility — supports Flyback, Buck, and Boost, reducing part count across design variants.
  • Integrated switch — lowers external component count and simplifies layout.
  • 650V breakdown rating — provides margin for offline mains operation.
  • Wide -40°C to 150°C (TJ) range — reliable in high-temperature enclosures.
  • Compact 16-SOIC package — saves board space in space-constrained designs.

Compact Offline Power Supplies

With 16 W output and a 650V breakdown rating, the LYT5216D-TL suits compact isolated flyback supplies for appliances and adapters where board space is limited.

Non-Isolated Buck Auxiliary Rails

The device also supports Step-Down (Buck) topology, making it useful for generating low-voltage auxiliary rails directly from the offline bus without a transformer.

Step-Up (Boost) Pre-Regulation

Boost topology support enables designs that need a stepped-up intermediate rail, useful in lighting and power-factor related front ends.

High-Temperature Environments

A -40°C to 150°C (TJ) rating allows reliable operation in enclosed enclosures and thermally challenging industrial equipment.

Integrated Switch Simplification

An integrated internal switch reduces external component count, simplifying layout and improving reliability in multi-topology designs.

Q: What switching topologies does the LYT5216D-TL support?
A: It supports Flyback, Step-Down (Buck), and Step-Up (Boost) topologies, giving designers flexibility across isolated and non-isolated designs.
Q: What is the breakdown voltage rating?
A: The device features a 650V breakdown voltage (Vds rating) for robust offline operation.
Q: How much power can it deliver?
A: It delivers up to 16 W of output power.
Q: What is the switching frequency?
A: The switching frequency is 132.7kHz.
Q: What is the operating temperature range?
A: It operates from -40°C to 150°C (TJ), suitable for demanding thermal environments.
Base Product Number : LYT5216D
16-SOIC 16W 650V AC-DC Converter Boost Converter Buck Converter Flyback Converter Isolated LYTSwitch-5 Offline Switcher
Q: What switching topologies does the LYT5216D-TL support?
A: It supports Flyback, Step-Down (Buck), and Step-Up (Boost) topologies, giving designers flexibility across isolated and non-isolated designs.
Q: What is the breakdown voltage rating?
A: The device features a 650V breakdown voltage (Vds rating) for robust offline operation.
Q: How much power can it deliver?
A: It delivers up to 16 W of output power.
Q: What is the switching frequency?
A: The switching frequency is 132.7kHz.
Q: What is the operating temperature range?
A: It operates from -40°C to 150°C (TJ), suitable for demanding thermal environments.