1.2 A, 2 MHz Automotive Buck Switching Regulator

8901

sivachaitanyaavirineni
Designer218095

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4 years 10 months

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Description

INTRODUCTION:The NCV890100 is a fixed−frequency, monolithic, Buck switchingregulator intended for Automotive, battery−connected applicationsthat must operate with up to a 36 V input supply. The regulator issuitable for systems with low noise and small form factorrequirements often encountered in automotive driver informationsystems. FEATURES:• 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• 2 MHz Free−running Switching Frequency• Logic Level Enable Input Can be Directly Tied to Battery• 1.4 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)• Low Shutdown CurrentAPPLICATIONS:• Audio• Infotainment• Safety − Vision Systems• InstrumentationSIMULATION:Gain: 12.255dB at 10Hz ………..…………..for Vin=6VPhase: 179.95° at 10Hz..……………………for Vin=6VPARAMETERS:A stability analysis of the buck converter design may be performed by passing the following parameters to the NCV8901XX:- L – Boost inductor value under operating condition (H)- RL –ESR under operating conditions.There are few pins whose functionality is internal and not included in the simulation:DRV-Output voltage to provide a regulated voltage to the Power Switch gate driverEN-This TTL compatible Enable input allows the direct connection of Battery as the enable signal.SW-Switching node of the Regulator.EXTERNAL COMPONENTS:The simulations can be carried at various conditions by changing V1(Input Voltage) , Rload .

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8901VirtualDemoBoardforSmallSignalAnalysis-Copy

RobertDavis
Designer256

RobertDavis

Member for

8 years 11 months

135

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Description

INTRODUCTION:The NCV890100 is a fixed−frequency, monolithic, Buck switchingregulator intended for Automotive, battery−connected applicationsthat must operate with up to a 36 V input supply. The regulator issuitable for systems with low noise and small form factorrequirements often encountered in automotive driver informationsystems. FEATURES:• 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• 2 MHz Free−running Switching Frequency• Logic Level Enable Input Can be Directly Tied to Battery• 1.4 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)• Low Shutdown CurrentAPPLICATIONS:• Audio• Infotainment• Safety − Vision Systems• InstrumentationSIMULATION:Gain: 12.255dB at 10Hz ………..…………..for Vin=6VPhase: 179.95° at 10Hz..……………………for Vin=6VPARAMETERS:A stability analysis of the buck converter design may be performed by passing the following parameters to the NCV8901XX:- L – Boost inductor value under operating condition (H)- RL –ESR under operating conditions.There are few pins whose functionality is internal and not included in the simulation:DRV-Output voltage to provide a regulated voltage to the Power Switch gate driverEN-This TTL compatible Enable input allows the direct connection of Battery as the enable signal.SW-Switching node of the Regulator.EXTERNAL COMPONENTS:The simulations can be carried at various conditions by changing V1(Input Voltage) , Rload .

About text formats

8901VirtualDemoBoardforSmallSignalAnalysis

RobertDavis
Designer256

RobertDavis

Member for

8 years 11 months

135

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

INTRODUCTION:The NCV890100 is a fixed−frequency, monolithic, Buck switchingregulator intended for Automotive, battery−connected applicationsthat must operate with up to a 36 V input supply. The regulator issuitable for systems with low noise and small form factorrequirements often encountered in automotive driver informationsystems. FEATURES:• 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• 2 MHz Free−running Switching Frequency• Logic Level Enable Input Can be Directly Tied to Battery• 1.4 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)• Low Shutdown CurrentAPPLICATIONS:• Audio• Infotainment• Safety − Vision Systems• InstrumentationSIMULATION:Gain: 12.255dB at 10Hz ………..…………..for Vin=6VPhase: 179.95° at 10Hz..……………………for Vin=6VPARAMETERS:A stability analysis of the buck converter design may be performed by passing the following parameters to the NCV8901XX:- L – Boost inductor value under operating condition (H)- RL –ESR under operating conditions.There are few pins whose functionality is internal and not included in the simulation:DRV-Output voltage to provide a regulated voltage to the Power Switch gate driverEN-This TTL compatible Enable input allows the direct connection of Battery as the enable signal.SW-Switching node of the Regulator.EXTERNAL COMPONENTS:The simulations can be carried at various conditions by changing V1(Input Voltage) , Rload .

About text formats