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NCV890131: Automotive Buck Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump, Sync In and Sync Out

Overview
Specifications
Datasheet: Automotive Buck Switching Regulator, 1.2 A, 2 MHz
Rev. 3 (151kB)
»Показать химический состав
»No Product Change Notifications exist
Product Overview
Описание продукта
The NCV890131 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 32 V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890131 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. Two pins are provided to synchronize switching to a clock, or to another NCV890131. The NCV890131 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.
Отличительные черты   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
 
  • Flexable enable
  • 1.4 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
  • Auto-synchronizes with Other NCV890101 or to an External Clock
 
  • Tailored EMC Response
Применения   End Products
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
 
  • Automotive
Технические информацие
Программно-инструментальные средства разработки (1) Типы корпусов (1)
Модели - Симуляция (4) Видео (1)
Спецификацие (1) Демонстрационные платы - справочники (5)
Информация по демонстрационной плате
Продукт Состояние Compliance Короткое описание Поступок
NV890131MWTXGEVB Active
Pb-free
High Frequency Buck Converter Evaluation Board
Avnet (2015-07-09) : 1
Mouser (2015-07-09) : 2
Наличие и образцы
Продукт
Состояние
Compliance
Описание
Корпус
MSL*
Контейнер
Бюджетная цена единицы
Тип
Размеры
Тип
Кол.
NCV890131MWTXG Active
AEC Qualified
PPAP Capable
Pb-free
Automotive Buck Switching Regulator, 1.2 A, 2 MHz, 45 V Load Dump, Sync In and Sync Out DFN-10 485C 1 Tape and Reel 3000 $1.2
* Уровень чувствительности компонента к влажности
Market Leadtime (weeks) : 4 to 8
Avnet   (2015-07-09) : >1K
Datasheet: Automotive Buck Switching Regulator, 1.2 A, 2 MHz
Rev. 3 (151kB)
»Показать химический состав
»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, 1.2 A, 2 MHz, 45 V Load Dump, Sync In and Sync Out   Step-Down   Current Mode   4.5   45   Adjustable   1.2     2200   DFN-10 
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