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Overview
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Development Resources
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Application
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Ordering Detail
Overview
The TPP15051 is a wide input range, non-synchronous DC-DC buck converter that uses peak current mode control. The TPP15051 integrates a 170-V, 1.3-Ω power MOSFET with 1.5-A peak current limit having up to 0.8-A output current capability.
The TPP15051 has a high-voltage startup circuitry to enable the device from high input voltage directly. The TPP15051 has a built-in 12-ms soft-start time to minimize the inrush current during startup. In the moderate to heavy load condition, the TPP15051 works in PWM mode at 100-kHz switching frequency. In the light load condition, the TPP15051 enters PFM mode to reduce the switching loss and improve the efficiency. The TPP15051 also has spread spectrum switching frequency dithering to reduce the EMI.
The TPP15051 features a cycle-by-cycle current limit in over-load conditions. Furthermore, when the output voltage is 10% below the regulation target and the current limit is touched for 128 switching cycles, or the output is short to ground, the TPP15051 enters hiccup mode and stops PWM switching for 65 ms. After hiccup times out, the TPP15051 re-starts the soft startup.
The TPP15051 is available in the SOP8 package.
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Status
Production
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Rating
Industrial
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VIN (V)
16~170
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Output (V)
3.3~50
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Max Output Current (A)
0.8
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Control Mode
Peak Current Mode
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Switching Frequency (kHz)
35 ~ 100
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Features
Auto PFM, Spread Spectrum
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Temperature Range (℃)
-40 to +125
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Package
SOP8
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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Newsletter
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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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Selection GuideEnglish07/02/2025
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Data SheetEnglish03/02/2026
170-V, 0.8-A Buck Converter
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Application
• PoE
• E-Bike
• E-Tools
• Scotter
• Solar Inverter
Ordering Detail
| Order Part Number | Buy | Samples | Rating | Feature | Status | 1ku Price | Release Date | Package | Lead time (week) | MSL | Packing | MPQ | CPQ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPP15051-SO1R | Industrial Grade | / | Production | / | 2026-02-27 | SOP8 | 24 | MSL3 | T&R | 4000 | 20000 |
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