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NCV81599MWTXG
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Product Detailed Parameters
- Description：I2C CONFIGURABLE, 4-SWITCH BUCK
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck, Boost
- Number of Outputs：4
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 32V
- Frequency - Switching：-
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：-
- Serial Interfaces：I2C
- Control Features：Current Limit, Enable, Frequency Control, Power Good, Ramp, Soft Start, Tracking
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：32-QFNW (5x5)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The NCV81599MWTXG is an automotive-grade synchronous buck-boost controller optimized for USB Power Delivery applications. It operates at a switching frequency of 1244 kHz and supports input voltages from 3V to 24V, delivering output currents up to 5A. The device features I2C interface control and integrates protection mechanisms including over-current, over-voltage, and thermal shutdown. Packaged in a 32-pin QFNW (5x5mm) with exposed pad, it ensures efficient power conversion for battery or adapter sources.
Feature Summary
- Synchronous buck-boost topology for bidirectional voltage conversion
- I2C programmable control interface for dynamic adjustment
- Integrated protection against over-current, over-voltage, and thermal events
Applications
- USB Power Delivery (PD) charging systems
- Battery-powered portable devices requiring flexible voltage regulation
- Automotive infotainment and connectivity modules
Procurement Notes
Verify the component's AEC-Q100 qualification status and RoHS compliance through official onsemi documentation before integration. Confirm that the 32-pin QFNW package dimensions match your PCB footprint requirements. Ensure design compatibility with the specified 1244 kHz switching frequency to manage electromagnetic interference appropriately.
Selection Notes
Select this controller when designing systems requiring both step-up and step-down capabilities within a single stage. It is suitable for applications needing precise voltage regulation via digital control. Consider its automotive grade rating if operating in environments with strict temperature and reliability standards.
Part Context
This part belongs to onsemi's portfolio of intelligent power management solutions tailored for automotive and industrial markets. As a specialized USB PD controller, it addresses the growing demand for high-efficiency, compact power stages in modern electronic devices requiring versatile input/output voltage ranges.
Replacement Considerations
Consult official onsemi substitution guides for verified alternatives. Generic replacements may not match the specific I2C command set or automotive qualification levels required for this application.
