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reference designNCP3294

Onsemi NCP3294

25 A Stackable Synchronous Buck Regulator

Overview

TopologyBuck Converter
Input voltage3-18 V
Switching frequency200-2000 kHz
Output 15.5 V / 25 A

Description

The NCP3294 is a highly efficient stackable synchronous buck regulator, capable of operating with an input range from 3 V to 18 V and supporting up to 25 A continuous load currents. Higher output currents can be achieved by 2 parallel NCP3294 devices operating as an interleaved two−phase buck regulator.The NCP3294 utilizes fixed−frequency current−mode control to provide accurate voltage regulation and fast transient response. Flexible programming of function and parameters supports multiple applications.

Features

  • VIN: 3−18 V with Input Feed−Forward
  • VOUT: 0.5−5.5 V with Remote Output Voltage Sense
  • 25 A Continuous Output Current – Stackable to 50 A
  • Fixed Frequency Current Mode Control
  • Integrated 5 V LDO or External Supply
  • Enable with Programmable VIN UVLO
  • Programmable Boot−Up Voltage
  • Programmable 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

Typical applications

  • Networking, Routers and Switches,Telecom Digital Baseband, Telecom Radio Unit
  • DC−DC Modules, General Purpose POL Regulator
  • Desktop Computers, Notebooks

More information

Parts approved by Onsemi

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(nH)
LR(nH)
IR(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
SamplesAvailability & Sample
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744308033
SPECWE-HCM SMT High Current Flat Wire Inductor, 330 nH, 305 nH

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance330 nH
Rated Inductance305 nH
Rated Current25 A
Saturation Current @ 10%27.3 A
Saturation Current @ 30%32 A
DC Resistance0.37 mΩ
Self Resonant Frequency35 MHz
MaterialMnZn 
–Check availability
744301047
SPECWE-HCM SMT High Current Flat Wire Inductor, 470 nH, 240 nH

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance470 nH
Rated Inductance240 nH
Rated Current38 A
Saturation Current @ 10%32.1 A
Saturation Current @ 30%36.1 A
DC Resistance0.32 mΩ
Self Resonant Frequency20 MHz
MaterialMnZn 
–Check availability