TPQ5180
75-V, PSR Flyback DC/DC Converter with 100-V, 1.5-A Internal Switch
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Overview
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Development Resources
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Application
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Ordering Detail
Overview
The TPQ5180 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 75 V. The isolated output voltage is sampled from the primary-side flyback voltage, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation. The high-level integration results in a simple, reliable, and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load and line regulation performance. An integrated 100-V power MOSFET provides output power up to 7 W with enhanced headroom for line transients.
The TPQ5180 converter simplifies the implementation of isolated DC/DC supplies with optional features to optimize performance for the target-end equipment. The output voltage is set by one resistor, while an optional resistor improves the output voltage accuracy by negating the thermal coefficient of the flyback diode voltage drop. Additional features include an internally fixed or externally programmable soft start, optional bias supply connection for higher efficiency, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.
The TPQ5180 is avaliable in DFN4x4-8 package.
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Status
Production
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Rating
Industrial
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VIN (V)
4.5~75
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Output (V)
/
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Max Output Current (A)
1.5
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Temperature Range (℃)
-40 to +125
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Topology
Flyback
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Regulation
QR PSR
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Switching Frequency (kHz)
12kHz ~ 350kHz
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Package
DFN4X4-8
Development Resources
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Documentation
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Show FilterHidden FilterDocumentation
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Data Sheet
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Selection Guide
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Application Note
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Technical Note
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User Guide
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Test Report
- Document Name
- Type
- Language
- Date
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Data SheetEnglish03/31/2025
75-V, PSR Flyback DC/DC Converter with 100-V, 1.5-A Internal Switch
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Selection GuideEnglish01/19/2024
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Application
• Isolated Field Transmitters and Actuators
• Isolated Power Modules
• IGBT and SiC Gate Drive Supplies
• Building Automation HVAC Systems
Ordering Detail
| Order Part Number | Buy | Samples | Rating | Feature | Status | 1ku Price | Release Date | Package | Lead time (week) | MSL | Packing | MPQ | CPQ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPQ5180-DFMR-S | Industrial Grade | / | Production | / | 2025-03-26 | DFN4X4-8 | 24 | MSL2 | T&R | 3000 | 15000 |
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