onsemi NCP3296 Stackable Synchronous Buck Regulator

onsemi NCP3296 Stackable Synchronous Buck Regulator that operates at 3V to 18V input voltage range and supports up to 40A continuous load current. This NCP3296 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 NCP3296 devices operating as an interleaved multi-phase buck regulator. This buck regulator incorporates under-voltage and over-voltage protection and operates at 150°C junction temperature. Typical applications include telecom digital baseband and 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 NCP3296 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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