Onsemi NCV891330

Description

The NCV891330 is a Dual Mode regulator intended for Automotive,battery−connected applications that must operate with up to a 45 Vinput supply. Depending on the output load, it operates either as a PWMBuck Converter or as a Low Drop−Out Linear Regulator, and is suitablefor systems with low noise and Low Quiescent Current requirementsoften encountered in automotive driver information systems. A resetpin (with fixed delay) simplifies interfacing with a microcontroller.The NCV891330 also provides several protection features expectedin automotive power supply systems such as current limit, short circuitprotection, and thermal shutdown. In addition, the high switchingfrequency produces low output voltage ripple even when using smallinductor values and an all−ceramic output filter capacitor – forming aspace−efficient switching regulator solution.

Features

• 30 A Iq in Light Load Condition
• 3.0 A Maximum Output Current in PWM Mode
• Internal N−channel Power Switch
• VIN Operating Range 3.7 V to 36 V
• Withstands Load Dump to 45 V
• Logic Level Enable Pin can be Tied to Battery
• Fixed Output Voltage of 5.0 V, 4.0 V, 3.8 V or 3.3 V
• 2 MHz Free−running Switching Frequency
• ±2 % Output Voltage Accuracy
• NCV Prefix for Automotive Requiring Site and Control Changes
• These Devices are Pb−Free and are RoHS Compliant

Typical applications

• Instrumentation
• Safety−Vision Systems
• Audio,Infotainment

More information

• Datasheet
• IC product information