NCP1593 Series

Synchronous Buck Regulator, 1 MHz, 3.0 A

Catalog

Synchronous Buck Regulator, 1 MHz, 3.0 A

Part	Package / Case	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Output Configuration	Frequency - Switching	Number of Outputs	Voltage - Output (Max) [Max]	Current - Output	Synchronous Rectifier	Mounting Type	Supplier Device Package	Voltage - Input (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Function	Output Type	Board Type	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Supplied Contents	Outputs and Type	Outputs and Type	Utilized IC / Part	Regulator Topology
ON Semiconductor NCP1593BMNTWG	10-VFDFN Exposed Pad	5.5 V	0.6 V	Positive	1 MHz	1	5.23 V	3 A		Surface Mount Wettable Flank	10-DFN (3x3)	4 V	85 °C	-40 °C	Buck	Step-Down	Adjustable
ON Semiconductor NCP1593BGEVB					1 MHz			3 A										Fully Populated	DC/DC Step Down	5.5 V	4 V	Board(s)	Non-Isolated	1	NCP1593B	Buck

Catalog

Synchronous Buck Regulator, 1 MHz, 3.0 A

Key Features

• Wide Input Voltage Range: from 4.0 V to 5.5 V

• Internal 90 mΩ High-Side P-Channel MOSFET and 70 mΩ Low-Side N-Channel MOSFET

• Fixed 1 MHz Switching Frequency

• Cycle-by-Cycle Current Limiting

• Hiccup Mode Short-Circuit Protection

• Overtemperature Protection

• Internal Fixed SoftStart with External Adjustment

• Start-up with Pre-Biased Output Load

• Adjustable Output Voltage Down to 0.6 V

• Auto Power Saving Mode During Light Load

• 100% Duty Cycle Operation

Description

The NCP1593 is a fixed 1 MHz, high output current, synchronous PWM converter that integrates a low-resistance, high-side P-channel MOSFET and a low-side N-channel MOSFET. The NCP1593 utilizes internally compensated current mode control to provide good transient response, ease of implementation and excellent loop stability. It regulates input voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.6 V and is able to supply up to 3 A of load current. The NCP1593 includes an internally fixed switching frequency (FSW), and an internal soft-start to limit inrush current. Other features include cycle-by-cycle current limiting, 100% duty cycle operation, short- circuit protection, power saving mode and thermal shutdown.