NCP1593: Synchronous Buck Regulator, 1 MHz, 3.0 A _ BDTIC 中国领先电子元器件代理商

NCP1593: Synchronous Buck Regulator, 1 MHz, 3.0 A

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.

特性

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

优势

Ability to run from various input voltage sources
High efficiency and good thermal performance
Small output inductor/capacitor and low ouptut ripple voltage
Protection feature
Protection feature
Protection feature
Ability to reduce external components with fixed internal SS time or adjust externally
Protection feature
Ability to regulate low output voltages
Increased efficiency at light load
Extends battery life

应用

+5Vin buck regulator

终端产品

DVD Drives and HDD
Notebook Computing
Set-Top-Box (STB)

数据表 (1)

Document Title	Document ID/Size	Revision	Revision Date
1 MHz, 3 A Synchronous Buck Regulator	NCP1593/D (371.0kB)	2

评估板文档 (8)

Document Title	Document ID/Size	Revision	Revision Date
NCP1593AGEVB Bill of Materials ROHS Compliant	NCP1593AGEVB_BOM_ROHS.PDF (48.0kB)	0
NCP1593AGEVB Gerber Layout Files (Zip Format)	NCP1593AGEVB_GERBER.ZIP (228.0kB)	0
NCP1593AGEVB Schematic	NCP1593AGEVB_SCHEMATIC.PDF (120.0kB)	0
NCP1593AGEVB Test Procedure	NCP1593AGEVB_TEST_PROCEDURE.PDF (107.0kB)	0
NCP1593BGEVB Bill of Materials ROHS Compliant	NCP1593BGEVB_BOM_ROHS.PDF (48.0kB)	0
NCP1593BGEVB Gerber Layout Files (Zip Format)	NCP1593BGEVB_GERBER.ZIP (228.0kB)	0
NCP1593BGEVB Schematic	NCP1593BGEVB_SCHEMATIC.PDF (123.0kB)	0
NCP1593BGEVB Test Procedure	NCP1593BGEVB_TEST_PROCEDURE.PDF (107.0kB)	0