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NCV891930MW00R2G
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Product Detailed Parameters
- Description：IC CTLR SYNC BUCK 24QFNW
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：3.5V ~ 45V
- Frequency - Switching：2MHz
- Duty Cycle (Max)：60%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Frequency Control, Soft Start, Sync
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：24-VFQFN Exposed Pad
- Supplier Device Package：24-QFNW (4x4)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The NCV891930MW00R2G is a fixed-frequency synchronous buck controller designed for automotive applications. It operates with a switching frequency of 2 MHz and supports input voltages up to 38 V. The device features low quiescent current and incorporates spread spectrum technology to reduce electromagnetic interference. It is housed in a compact 24-pin QFNW package, ensuring efficient power management within strict automotive thermal and space constraints.
Feature Summary
- Fixed 2 MHz switching frequency for optimized component size
- Spread spectrum modulation capability to minimize EMI noise
- Low quiescent current operation for enhanced energy efficiency
- Automotive-grade reliability with high voltage tolerance
Applications
- Automotive DC-DC conversion systems
- High-voltage battery-powered subsystems
- Electromagnetic interference-sensitive automotive electronics
- Compact power management modules in vehicles
Procurement Notes
Verify the obsolete status of this specific part number before initiating any procurement activities. Confirm that the designated substitute, NCV891930MW00AR2G, meets all functional and mechanical requirements for your design. Ensure compliance with automotive quality standards and check for any discontinuance notifications from the manufacturer to avoid supply chain disruptions during production.
Selection Notes
Select this controller when designing systems requiring a 2 MHz fixed frequency and robust EMI performance in automotive environments. Consider the 38 V input limit and the necessity for spread spectrum functionality. Evaluate the 24-pin QFNW package dimensions against available board space. Verify that the low quiescent current aligns with standby power requirements for the target application.
Part Context
This component belongs to the NCV891930 series of automotive buck controllers. It shares core architectural features with other members of the family but is distinguished by its specific pinout, packaging, and factory configuration suffixes. The series targets high-efficiency power conversion in demanding vehicular electronic systems.
Replacement Considerations
The NCV891930MW00AR2G is listed as a direct substitute for the discontinued NCV891930MW00R2G. Validate pin compatibility and electrical specifications before replacement.
