
The MP3398B is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source. The MP3398B uses peak-current mode with fixed switching frequency. The frequency is programmable by an external setting resistor. The MP3398B drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. It regulates the current in each LED string to the value set by an external current-setting resistor. The MP3398B applies 4 internal current sources for current balance. The current matching can achieve 2.5% regulation accuracy between strings. Its low regulation voltage on LED current sources reduces power loss. The MP3398B can support both analog and PWM dimming independently to meet the different dimming-mode request. In addition, rich protection modes are also integrated including OCP, OTP, UVP, OVP, LED short/open protection, inductor/diode short protection. The MP3398B is available in a TSSOP16-EP package.
YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD) supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.
MP3398B is an authentic electronic component manufactured by Monolithic Power Systems, categorized under Unclassified. It is supplied in the standard manufacturer-specified package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official MP3398B datasheet above.
Electronic component spot-market pricing for MP3398B fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.
Lead times for MP3398B depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.
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| Picture | Part Number | Manufacturer | PDF / RoHS | Stock | Action |
|---|---|---|---|---|---|
| Monolithic Power Systems | 9,470 | ||||
| Monolithic Power Systems | 9,270 | ||||
| Monolithic Power Systems | -- | 3,270 | |||
| Monolithic Power Systems | -- | 6,620 | |||
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| Monolithic Power Systems | -- | 4,900 | |||
| Monolithic Power Systems | 4,850 | ||||
| Monolithic Power Systems | 4,490 | ||||
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| Monolithic Power Systems | -- | 5,270 |