NCV890230: Automotive Buck Switching Regulator, 2 A, 2 MHz , 45 V Load Dump

Overview
Specifications
Datasheet: 2 A, 2 MHz Automotive Buck Switching Regulator
Rev. 1 (163.0kB)
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Product Overview
Product Description
The NCV890230 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890230 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The NCV890230 also provides several protection features expected in Automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.
Features   Benefits
     
  • 2 MHz Free-running Switching Frequency
 
  • Enables to use small size, low cost inductor and EMC filter
  • Internal N-Channel Power Switch
 
  • Fewer external components
  • Low VIN Operation Down to 4.5 V
 
  • Maintains operation during battery transients
  • High VIN Operation to 32 V
 
  • Maintains operation during battery transients
  • Withstands Load Dump to 45 V
 
  • Protects the load from load dump
  • Logic level Enable Input Can be Directly Tied to Battery
 
  • Flexible enable
  • 2.2 A (min) Cycle-by-Cycle Peak Current Limit
 
  • Protects against over current faults
  • Short-Circuit Protection enhanced by Frequency Foldback
 
  • Protects against short circuits on the output
  • 1.75% Output Voltage Tolerance
 
  • Highly accurate regulation.
  • Output Voltage Adjustable Down to 0.8 V
 
  • Suitable for a wide range of applications
  • 1.4 ms Internal Soft-Start
 
  • Limits inrush current
  • Thermal Shutdown (TSD)
 
  • Thermally protects IC
Applications   End Products
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
 
  • Automotive
Technical Documentation & Design Resources
Design & Development Tools (2) Package Drawings (1)
Simulation Models (1) Evaluation Board Documents (4)
Data Sheets (1)  
Evaluation Board Information
Evaluation Board Status Compliance Short Description Action
NV890230PDR2GEVB Intro Pending
Pb-free
Automotive Buck Switching Regulator, 2 A, 2 MHz , Evaluation Board
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
NCV890230PDR2G Active
AEC Qualified
PPAP Capable
Pb-free
Automotive Buck Switching Regulator, 2 A, 2 MHz , 45 V Load Dump SOIC-8 EP 751AC 2 Tape and Reel 2500 $1.25
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) :
Datasheet: 2 A, 2 MHz Automotive Buck Switching Regulator
Rev. 1 (163.0kB)
»View Material Composition
»No Product Change Notifications exist
Product Overview

Product Compliance Status Description Topology Control Mode VCC Min (V) VCC Max (V) VO Typ (V) IO Typ (A) Efficiency (%) fSW Typ (kHz) Package Type
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Active     Automotive Buck Switching Regulator, 2 A, 2 MHz , 45 V Load Dump   Step-Down   Current Mode   4.5   45   Adjustable   2     2250   SOIC-8 EP 
Datasheet: 2 A, 2 MHz Automotive Buck Switching Regulator
Rev. 1 (163.0kB)
»View Material Composition
»No Product Change Notifications exist
Product Overview
Case Outlines
751AC   
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