IC reference design search
IC manufacturers Onsemi

IC manufacturers (105)

reference designNCV8851B | Demoboard NCV8851BDBGEVB

Onsemi NCV8851B | Demoboard NCV8851BDBGEVB

NCV8851B Automotive Grade Synchronous Buck Controller

Overview

TopologyBuck Converter
Input voltage4.5-40 V
Switching frequency170-500 kHz
Output 15 V / 3 A
IC revision2

Description

The NCV8851B Evaluation Board provides a convenientway to evaluate and integrate a complete high-efficiencysynchronous buck converter design. No additionalcomponents are required, other than dc supplies for the inputvoltage and enable pin. The board also can be connected toan external clock source to synchronize the switchingfrequency or for spread spectrum operation. The board isconfigured for a 5.0 V output with a 170 kHz switchingfrequency and a 4 A current limit, intended for applicationsrequiring over 3 A of current

Features

5.0 V Output Voltage

  • 91% Efficiency at 3 A
  • 4 A Average Current Limit (ACL)
  • 170 kHz Switching Frequency
  • Average Current Mode Control
  • Automotive Grade for up to TA = 105°C
  • Wide Input Voltage Range of 4.5 V to 40 V
  • Regulates through Load Dump Conditions
  • 1.0 A Maximum Quiescent Current in Sleep Mode
  • Programmable Fixed Frequency – 170 kHz to 500 kHz
  • External Clock Synchronization up to 600 kHz
  • Easy to Modify for Other Applications

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
7447709150
SPECWE-PD SMT Power Inductor, 15 µH, 8 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance15 µH
Saturation Current @ 10%8 A
Saturation Current @ 30%9.8 A
Rated Current6.5 A
Performance Rated Current7.4 A
DC Resistance26 mΩ
Self Resonant Frequency17 MHz
Size1210 
VersionStandard 
–Check availability