NCV8843 Series

Buck Regulator, 1.5 A, 340 kHz, with Synchronization Capability

Catalog

Buck Regulator, 1.5 A, 340 kHz, with Synchronization Capability

Part	Frequency - Switching	Main Purpose	Outputs and Type	Outputs and Type	Voltage - Output	Regulator Topology	Voltage - Input [Min]	Voltage - Input [Max]	Board Type	Utilized IC / Part	Current - Output	Supplied Contents	Voltage - Input (Min) [Min]	Output Configuration	Package / Case	Package / Case [custom]	Package / Case [custom]	Grade	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Max)	Mounting Type	Function	Number of Outputs	Output Type	Supplier Device Package	Topology	Voltage - Output (Min/Fixed)
ON Semiconductor NCV8843MNR2GEVB	340 kHz	DC/DC Step Down	Non-Isolated	1	3.3 V	Buck	5 V	16 V	Fully Populated	NCV8843	1 A	Board(s)
ON Semiconductor NCV8843PWR2G	340 kHz										1.5 A		4 V	Positive	16-SOIC Exposed Pad	0.295 in	7.5 mm	Automotive	150 °C	-40 °C	38 V	Surface Mount	Step-Down	1	Adjustable	16-SOIC	Buck	1.27 V
ON Semiconductor NCV8843PWG	340 kHz										1.5 A		4 V	Positive	16-SOIC Exposed Pad	0.295 in	7.5 mm	Automotive	150 °C	-40 °C	38 V	Surface Mount	Step-Down	1	Adjustable	16-SOIC	Buck	1.27 V

Catalog

Buck Regulator, 1.5 A, 340 kHz, with Synchronization Capability

Key Features

• V2™ Control Architecture

• 2.0% Error Amp Reference Voltage Tolerance

• Cycle-by-Cycle Current Limiting

• Switch Frequency Decrease of 4:1 in Short Circuit

• Bootstrapped Operation (BOOST)

• Synchronization to External Clock (SYNC)

• 1.0 A Shutdown Quiescent Current

• Thermal Shutdown

• Soft-Start

• Pb-Free Packages are Available

Description

The NCV8843 is a 1.5 A buck regulator IC operating at a fixed frequency of 340 kHz. The device employs the V2™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation. The NCV8842 accommodates input voltages from 4.0 V to 40 V and contains synchronization circuitry. The on-chip NPN transistor is capable of providing a minimum of 1.5 A of output current and is biased by an external boost capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback short-circuit protection.