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LIMCHIP CO., LIMITED
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RFQ ListingPower Management ICs
MP9943GQ-Z is an MPS high-frequency synchronous buck converter with integrated 85 mOhm/55 mOhm MOSFETs, delivering 3 A peak output from a 4 V to 36 V input. Current-mode control, 410 kHz switching with 200 kHz-2.2 MHz sync, power-save mode and full protection come in a compact QFN-8 3 x 3 mm.
ManufacturerMonolithic Power Systems
PackageQFN-8, 3 × 3 mm; Tape & Reel (-Z)
SeriesMP9943
Power IC Specifications
| Parameter | Value / Specification |
|---|---|
| Function / Topology | High-frequency synchronous rectified buck converter with integrated 85 mOhm / 55 mOhm power MOSFETs |
| Input Voltage | 4 V to 36 V operating input range |
| Output Voltage / Current | 3 A peak output current; output voltage adjustable from 0.8 V |
| Switching Frequency | 410 kHz fixed; external clock synchronization from 200 kHz to 2.2 MHz |
| Features | Power-save mode, internal soft start, power-good indicator, high duty cycle for automotive cold-crank conditions |
| Protections | Overcurrent protection with hiccup mode and thermal shutdown |
| Temperature Grade | -40 °C to +125 °C (junction) |
| Package / Case | QFN-8, 3 × 3 mm; Tape & Reel (-Z) |
Power Features & Applications
- Wide 4 V to 36 V input supports 12 V and 24 V rails
- 3 A peak output with excellent line and load regulation
- Low 85/55 mOhm integrated MOSFETs raise efficiency
- Synchronizable 410 kHz operation eases EMI filter design
- Power-good flag plus hiccup OCP and thermal shutdown
- Minimal external components in a space-saving QFN-8
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Frequently Asked Questions
Is MP9943GQ-Z available from LimChip?
LimChip can confirm current availability, price, quantity, date code and lead time for MP9943GQ-Z by RFQ.
What should buyers check before ordering MP9943GQ-Z?
Buyers should check voltage range, current rating, package, protection features and date code for MP9943GQ-Z, together with live stock and traceable supply.
How do I request a quote for MP9943GQ-Z?
Use the RFQ button and include required quantity, target date code, package/case requirement, delivery country, company name and contact details.