NCV890201: Automotive Switching Regulator, Buck, 2 A, 2 MHz

The NCV890201 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 NCV890201 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 NCV890201. The NCV890201 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.

特性
  • 2 MHz Free-running Switching Frequency
  • Internal N-Channel Power Switch
  • Low VIN Operation Down to 4.5 V
  • High VIN Operation to 36 V
  • Withstands Load Dump to 40 V
  • Auto-synchronizes with Other NCV890201 or to an External Clock
  • Logic level Enable Input Can be Directly Tied to Battery
  • 2.2 A (min) Cycle-by-Cycle Peak Current Limit
  • Short Circuit Protection Enhanced by Frequency Foldback
  • ±1.75% Output Voltage Tolerance
  • Output Voltage Adjustable Down to 0.8 V
  • 1.4 ms Internal Soft-Start
  • Thermal Shutdown (TSD)
  • Low Shutdown Current
  • NCV Prefix for Automotive and Other Applications Requiring Site and Change Controls
  • Wettable Flanks DFN
  • This is a PbFree Device
  • Safety - Vision Systems
  • Instrumentation
优势
  • Enables the use of small, low-cost inductor and EMC filter
应用
  • Audio
  • Infotainment
终端产品
  • Automotive
设计和开发工具 (1)
Document TitleDocument ID/SizeRevisionRevision Date
NCV890200/01/30/31 Design Worksheet - Continuous Conduction ModeNCV8902_00_01_30_31 design sheet (206kB)2Nov, 2014
封装图纸 (1)
Document TitleDocument ID/SizeRevision
DFN10, 3x3, 0.5P485C (33.7kB)E
仿真模型 (3)
Document TitleDocument ID/SizeRevisionRevision Date
Average model for ac simulation on PSPICEAverage model for ac simulation on PSPICE (104kB)1
Average model for fast transient simulations on PSPICE (no switching)NCV8902XX_TRANAVG_PSPICE  (339kB)1
NCV890100 switching model for PSPICENCV890100_SPICE (11.0kB)0
评估板文档 (5)
Document TitleDocument ID/SizeRevisionRevision Date
NCV890201EVB Evaluation Board User's ManualEVBUM2050/D (677.0kB)P1
NV890201MWTXGEVB Bill of Materials ROHS CompliantNV890201MWTXGEVB_BOM_ROHS.PDF (96.0kB)1
NV890201MWTXGEVB Gerber Layout Files (Zip Format)NV890201MWTXGEVB_GERBER.ZIP (54.0kB)1
NV890201MWTXGEVB SchematicNV890201MWTXGEVB_SCHEMATIC.PDF (189.0kB)1
NV890201MWTXGEVB Test ProcedureNV890201MWTXGEVB_TEST_PROCEDURE.PDF (1129.0kB)1
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Automotive Switching Regulator, Buck, 2 A, 2 MHzNCV890201/D (150kB)3Feb, 2015
评估板与开发工具
产品状况Compliance简短说明
NV890201MWTXGEVBActivePb-freeHigh Frequency Buck Converter Evaluation Board
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
NCV890201MWTXGActiveAEC Qualified PPAP Capable Pb-freeDFN-10485C1Tape and Reel3000$1.325
订购产品技术参数
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
NCV890201MWTXGStep-DownCurrent Mode4.540Adjustable22250
Automotive Switching Regulator, Buck, 2 A, 2 MHz (150kB) NCV890201
NCV890200/01/30/31 Design Worksheet - Continuous Conduction Mode NCV890231
Average model for ac simulation on PSPICE NCV890231
Average model for fast transient simulations on PSPICE (no switching) NCV890231
NCV890100 switching model for PSPICE NCV890231
EVBUM2050/D - 677 NV890201MWTXGEVB
NV890201MWTXGEVB BOM ROHS NV890201MWTXGEVB
NV890201MWTXGEVB GERBER NV890201MWTXGEVB
NV890201MWTXGEVB SCHEMATIC NV890201MWTXGEVB
NV890201MWTXGEVB TEST PROCEDURE NV890201MWTXGEVB
DFN10, 3x3, 0.5P NLAS4684
NCV890201