LM5050Q0MKX-1/NOPB Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
Automotive-grade single-channel N-channel MOSFET OR controller for ideal diode and power multiplexing in 6-pin TSOT-23 package. Drives external N-FET gate to achieve low forward voltage drop versus Schottky diodes. AEC-Q100 qualified for 12 V and 24 V automotive power rail redundancy.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LM5050Q0MKX-1/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1475(MOQ 1)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM5050Q0MKX-1/NOPB?
- Drives external N-channel MOSFET as an ideal diode, achieving forward voltage drop under 10 mV versus 300–500 mV for Schottky diodes
- AEC-Q100 automotive qualified for use in 12 V and 24 V vehicle power management and redundancy circuits
- Single-channel OR control in a compact 6-pin TSOT-23 footprint minimizing PCB area in space-constrained automotive modules
- Integrated gate drive circuitry eliminates discrete charge pump components required for N-FET high-side switching
What is LM5050Q0MKX-1/NOPB used for?
The LM5050Q0MKX-1/NOPB is designed for automotive power OR-ing circuits where two power sources, such as a primary battery and a backup capacitor bank, must share a load without allowing reverse current. Its N-channel MOSFET drive approach reduces power dissipation by more than 10x compared to Schottky diodes at 5 A load currents. The device also suits ADAS and infotainment modules requiring AEC-Q100 qualified power management components in a 6-pin TSOT-23 space.
What are the specifications of LM5050Q0MKX-1/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| High Side Driver | YES |
| Input Characteristics | STANDARD |
| Interface IC Type | HALF BRIDGE BASED MOSFET DRIVER |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Characteristics | STANDARD |
| Output Peak Current Limit-Nom | 2.8A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Current-Max | 0.288mA |
| Supply Voltage-Max | 75V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 12V |
| Supply Voltage1-Max | 75V |
| Supply Voltage1-Min | 5V |
| Supply Voltage1-Nom | 12V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM5050Q0MKX-1/NOPB datasheet?
LM5050Q0MKX-1/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM5050Q0MKX-1/NOPB?
Compatible alternatives and drop-in replacements for LM5050Q0MKX-1/NOPB:
Frequently Asked Questions
How does the LM5050Q0MKX-1/NOPB eliminate reverse current in automotive dual-supply systems?
The LM5050Q0MKX-1/NOPB monitors the voltage across an external N-channel MOSFET and drives the gate to keep it on when current flows forward, and turns it off immediately when reverse current is detected. This prevents back-feeding from a secondary supply or charged capacitor bank into a lower-voltage primary source, with response times typically under 1 µs, which is fast enough to protect sensitive automotive loads during 12 V bus transitions.
What efficiency advantage does the LM5050Q0MKX-1/NOPB offer over a conventional Schottky diode ORing approach?
A Schottky diode typically drops 300–500 mV at rated current, dissipating significant power as heat. The LM5050Q0MKX-1/NOPB drives an external N-FET whose on-resistance can be below 5 mΩ, reducing the forward drop to under 10 mV at 5 A. This 30x reduction in voltage drop translates to roughly 2.5 W less heat in high-current automotive nodes, improving system efficiency and reducing thermal design requirements.
Is the LM5050Q0MKX-1/NOPB qualified for harsh automotive temperature environments?
Yes, the LM5050Q0MKX-1/NOPB carries AEC-Q100 Grade 1 qualification, covering an operating temperature range of -40°C to +125°C as required by automotive body control, ADAS, and powertrain applications. The Q0 designation in the part number indicates it meets specific automotive quality levels, making it suitable for inclusion in designs compliant with IATF 16949 manufacturing standards and automotive functional safety frameworks.
What external MOSFET specifications should be selected to pair with the LM5050Q0MKX-1/NOPB in a 12 V automotive OR circuit?
For a 12 V automotive OR application, choose an N-channel MOSFET with a VGS threshold below 2 V to ensure full enhancement at the gate drive voltage provided by the LM5050Q0MKX-1/NOPB, a VDS rating of at least 30 V to survive load-dump transients, and an RDS(on) below 10 mΩ at 10 V VGS to minimize conduction losses at currents up to 10 A. A DPAK or D2PAK package provides adequate thermal performance on a standard 2-layer PCB ground plane.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| 45+ | $1.2750 | $57.37 |
| 119+ | $1.1475 | $136.55 |
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