NCP1599 Datasheet, PDF (1/10 Pages) ON Semiconductor – 1 MHz, 3 A Synchronous Buck Regulator

NCP1599
Product Preview
1 MHz, 3 A Synchronous
Buck Regulator
The NCP1599 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 NCP1599 utilizes
internally compensated current mode control to provide good transient
response, ease of implementation, and excellent loop stability. It
regulates input voltages from 2.8 V to 5.5 V down to an output voltage
as low as 0.8 V and is able to supply up to 3.0 A of load current.
The NCP1599 includes an internally fixed switching frequency
(FSW), and an internal soft−start to limit inrush current.
Other features include cycle−by−cycle current limiting,
short−circuit protection, power saving mode and thermal shutdown.
Features
• Wide Input Voltage Range: from 2.8 V to 5.5 V
• Internal 140 mW High−Side P−Channel and 90 mW Low−Side
N−Channel MOSFET
• Fixed 1 MHz Switching Frequency
• Cycle−by−Cycle Current Limiting
• Hiccup Mode Short−Circuit Protection
• Overtemperature Protection
• Internal Soft−Start
• Start−up with Pre−Biased Output Load
• Adjustable Output Voltage Down to 0.8 V
• Power Saving Mode During Light Load
• These are Pb−Free Devices
Applications
• DSP Power
• Hard Disk Drivers
• Computer Peripherals
• Home Audio
• Set−Top Boxes
• Networking Equipment
• LCD TV
• Wireless and DSL/Cable Modem
• USB Power Devices
http://onsemi.com
1
DFN6
CASE 506AH
MARKING
DIAGRAM
1 ₁₅₉₉
AYWW
G
A
= Assembly Location
Y
= Year
WW = Work Week
G
= Pb−Free Package
PIN CONNECTIONS
FB 1
6 COMP
GND 2
LX 3
5 VCC
4 VCCP
(Top View)
ORDERING INFORMATION
Device
Package
Shipping^†
NCP1599MNR2G DFN6 3000 / Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2010
1
May, 2010 − Rev. P0
Publication Order Number:
NCP1599/D