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NCV891930MW00AR2G
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Product Detailed Parameters
- Description：IC CTLR SYNC BUCK 24QFNW
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 37V
- Frequency - Switching：2MHz
- Duty Cycle (Max)：-
- 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 NCV891930MW00AR2G is a synchronous step-down DC/DC converter manufactured by onsemi, designed for automotive applications. It integrates high-side and low-side power switches to deliver efficient voltage regulation from input sources up to 40 V. The device features adjustable output voltage via an external resistor divider and supports fixed switching frequencies of 500 kHz or 1 MHz. It includes comprehensive protection mechanisms such as overcurrent protection, thermal shutdown, and undervoltage lockout. The component is housed in a compact HVSON-8 package, suitable for space-constrained designs requiring robust power management in vehicle electronics.
Feature Summary
- Synchronous buck topology for high efficiency
- Integrated high-side and low-side power switches
- Automotive-grade reliability with AEC-Q100 qualification
- Built-in overcurrent and thermal protection
Applications
- Infotainment system power distribution
- Telematics control unit supply
- ADAS sensor module regulation
- Body control module voltage conversion
Procurement Notes
Verify the specific suffix 'AR2G' against the official datasheet to confirm the exact switching frequency option and tape-and-reel packaging configuration. Ensure compatibility with automotive temperature ranges specified in the product documentation before integration into final assemblies.
Selection Notes
Select this regulator when designing for automotive environments requiring high efficiency and compact footprint. Consider the integrated switch current rating and thermal performance relative to the expected load profile. Verify that the required output voltage range aligns with the device's adjustable feedback network capabilities.
Part Context
This part belongs to onsemi's NCV89xxx series of automotive synchronous buck regulators. These components are engineered to meet stringent automotive standards, offering reliable performance in harsh electrical environments. The series provides various current ratings and switching frequencies to suit diverse power delivery needs in modern vehicles.
Replacement Considerations
Check for direct pin-compatible alternatives within the same NCV89xxx family with similar current ratings. Verify that any substitute maintains the required automotive qualification status and operating temperature range.
