Onsemi NCP3284 30A Synchronous Buck DC-DC Converter with Integrated MOSFETs
The onsemi NCP3284 is a high-performance, single-phase synchronous buck converter designed for high-current Point-of-Load (POL) applications. It integrates both high-side and low-side MOSFETs, delivering a compact, efficient, and reliable power solution for modern computing and communication systems.
With up to 30A continuous output current and flexible switching frequency options, the NCP3284 enables optimized efficiency and fast transient response in space-constrained designs.


| Device | Current | Package | Shipping† |
| NCP3284MNTXG | 30 A | PQFN37 | 3000 / Tape &Reel |
| NCP3284AMNTXG | 35 A | (Pb-Free) |
Key Features
·Electrical Performance
Wide input voltage range: 4.5V to 18V
Output voltage range: 0.8V to 5.5V
Output current:
30A continuous
Up to 45A peak
·High Efficiency Design
Integrated high-side and low-side MOSFETs
Programmable switching frequency:
500 kHz / 600 kHz / 800 kHz / 1 MHz
Automatic CCM/DCM operation for light-load efficiency
·Advanced Control & Functions
Internal 5V LDO or external bias support
Adjustable soft-start
Programmable current limit
Power Good (PG) indicator
·Protection Features
Over-Voltage Protection (OVP)
Under-Voltage Protection (UVP)
Over-Temperature Protection (OTP)
Configurable fault response (hiccup or latch-off)
Package Information
Compact PQFN-37 (5mm × 6mm) package
High integration reduces external component count
Ideal for high-density PCB layouts
Applications
The NCP3284 is optimized for demanding power applications, including:
Servers and data centers
Telecom and networking equipment
Storage systems
FPGA and CPU core power (POL regulators)
Key Advantages
✔ High current capability up to 30A
✔ Integrated MOSFETs for simplified design
✔ High switching frequency for compact size
✔ Fast transient response for dynamic loads
✔ Robust protection for system reliability
CORE Advantage offers Onsemi's MOSFETs, AC-DC/DC-DC power converter modules and silicon carbide (SiC) products. Welcome to inquire and learn more.



