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.
http://onsemi.com
MARKING
DIAGRAM
1
1
1599
AYWW
DFN6
G
CASE 506AH
Other features include cycle−by−cycle current limiting,
short−circuit protection, power saving mode and thermal shutdown.
A
Y
= Assembly Location
= Year
Features
WW
G
= Work Week
= Pb−Free Package
• 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
PIN CONNECTIONS
• Fixed 1 MHz Switching Frequency
• Cycle−by−Cycle Current Limiting
• Hiccup Mode Short−Circuit Protection
• Overtemperature Protection
FB
1
2
3
6 COMP
GND
LX
5
4
VCC
• Internal Soft−Start
VCCP
• 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
(Top View)
ORDERING INFORMATION
†
Device
NCP1599MNR2G
Package
Shipping
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
DFN6
(Pb−Free)
3000 / Tape & Reel
†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
Publication Order Number:
May, 2010 − Rev. P0
NCP1599/D