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Microchip Technology TC33370VAV — Discrete Semiconductors

TC33370VAV Microchip Flyback Regulator, 25 W, 700 V

MPNTC33370VAV
End of Life

Microchip Technology TC33370VAV flyback switching regulator, 25 W, 700 V breakdown, 100 kHz, TO-220-5 formed leads, bulk package.

$1.02Ref. price · indicative, final on quote
Microchip Technology TC33370VAV datasheet (PDF)
PackagingTO-220-5 Formed Leads
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TC33370VAV specifications
ParameterValue
MountingThrough Hole
Voltage - start up8.5 V
Voltage - breakdown700V
Voltage - supply (Vcc (Vdd))7.5V ~ 10V
Power (Watts)25 W
Frequency - switching100kHz
Duty cycle74%
Operating temperature-40°C ~ 150°C (TJ)
PackageBulk
TopologyFlyback
CaseTO-220-5 Formed Leads
Fault protectionCurrent Limiting, Over Temperature, UVLO
Output isolationIsolated
Internal switchYes

Product details

Flyback regulator with integrated 700 V switch

The Microchip Technology TC33370VAV is a flyback switching regulator with an internal 700 V breakdown switch, rated for 25 W output power in isolated or non-isolated designs. Switching at 100 kHz with a maximum duty cycle of 74%, it suits compact offline power supplies where transformer size trades against switching losses.

Through-hole TO-220-5 package and bulk supply

Housed in a TO-220-5 with formed leads (through-hole mount), the package suits single-sided boards or prototype builds where a heatsink can be bolted directly to the tab. Supplied in Bulk — no reel or tape, so expect tube or tray handling for manual or low-volume assembly.

Frequently asked questions

What topology does the TC33370VAV use?

The TC33370VAV uses a flyback topology with output isolation, integrating the primary-side switch. It operates at 100 kHz with a 74% maximum duty cycle.