Datasheet > NCV890230

NCV890230

更新时间： 2022-02-26 13:32:54

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
18页	144K
描述
2 A, 2 MHz Automotive Buck Switching Regulator

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NCV890230 数据手册

NCV890230

2 A, 2 MHz Automotive

Buck Switching Regulator

The NCV890230 is a fixed−frequency, monolithic, Buck switching

regulator intended for Automotive, battery−connected applications

that must operate with up to a 36 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 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.

www.onsemi.com

MARKING

DIAGRAM

V890230

ALYWX

SOIC−8 EP

CASE 751AC

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Device

Features

• Internal N−Channel Power Switch

• Low V Operation Down to 4.5 V

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 17 of this data sheet.

• High V Operation to 36 V

• Withstands Load Dump to 45 V

• 2 MHz Free−running Switching Frequency

• 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 Millisecond Internal Soft−Start

• Thermal Shutdown (TSD)

• These Devices are Pb−Free and are RoHS Compliant

Applications

• Low Shutdown Current

• Audio

• Infotainment

• Safety − Vision Systems

• Instrumentation

• NCV Prefix for Automotive and Other Applications

Requiring Unique Site and Control Change

Requirements; AEC−Q100 Qualified and PPAP

Capable

CDRV

DBST

NCV890230

VIN

VOUT

COUT

VIN

BST

CBST

CIN

DFW

RFB1

DRV

GND

COMP

RFB2

RCOMP

CCOMP

Figure 1. Typical Application

Publication Order Number:

October, 2014 − Rev. 2

NCV890230/D

12 3 4 5 6 7...18

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