onsemi NCP3286 Stackable Synchronous Buck Regulator

onsemi NCP3286 Stackable Synchronous Buck Regulator is a highly efficient buck regulator with a PMBus interface and supports up to 40A continuous load currents. This NCP3286 buck regulator utilizes fixed-frequency current-mode control to provide accurate voltage regulation and fast transient response. The stackable buck regulator achieves higher output by 2, 3, or 4 parallel NCP3286 devices operating as an interleaved multi-phase buck regulator. This NCP3286 regulator operates from 3V to 18V input voltage range. Typical applications include telecom digital baseband, radio units, routers and switches, high-density power solutions, DC/DC modules, servers, desktop computers, notebooks, and gaming.

Features

3V_IN to 18V_IN input voltage range
0.5V_OUT to 5.5V_OUT output voltage range
40A continuous output current
Programmable fixed frequency current mode control
Integrated 5V Low Dropout (LDO) or external supply
Enable with programmable V_IN Under Voltage Lock Out (UVLO)
Programmable boot-up voltage and soft start

Pre-bias start-up
Programmable current limit
Power good indicator
Selectable protection mode (latch-off or hiccup)
Under-voltage and over-voltage protection
Output discharge in shutdown
150°C operating junction temperature

Applications

Telecom digital baseband and radio unit
Routers and switches
Server, desktop computers, notebooks, and gaming

High-density power solutions
DC/DC modules
General purpose POL regulator

onsemi NCP3286 Stackable Synchronous Buck Regulator

Features

Applications

Application Circuit for Single Input Supply (LDO Enabled)

Application Circuit with External 5V VCC Supply (LDO Disabled)

Block Diagram

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