NCP1595_12 Datasheet, PDF (1/13 Pages) ON Semiconductor – 1 MHz, 1.5 A Synchronous Buck Regulator

NCP1595, NCP1595A,
NCP1595C
1 MHz, 1.5 A Synchronous
Buck Regulator
The NCP1595/A/C family are fixed 1 MHz, high−output−current,
synchronous PWM converters that integrate a low−resistance,
high−side P−channel MOSFET and a low−side N−channel MOSFET.
The NCP1595/A/C utilizes current mode control to provide fast
transient response and excellent loop stability. It regulates input
voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.8 V
and is able to supply up to 1.5 A.
The NCP1595/A/C includes an internally fixed switching frequency
(FSW), and an internal soft−start to limit inrush currents. Using the EN
pin, shutdown supply current is reduced to 3 mA maximum.
Other features include cycle−by−cycle current limiting,
short−circuit protection and thermal shutdown.
Features
• Input Voltage Range: from 4.0 V to 5.5 V
• Internal 140 mW High−Side Switching P−Channel MOSFET and
90 mW Low−Side N−Channel MOSFET
• Fixed 1 MHz Switching Frequency
• Cycle−by−Cycle Current Limiting
• Overtemperature Protection
• Internal Soft−Start
• Diode Emulation During Light Load (Disabled for NCP1595C)
• Hiccup Mode Short−Circuit Protection
• Start−up with Pre−Biased Output Load
• Adjustable Output Voltage Down to 0.8 V
• 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
MARKING
DIAGRAM
1
DFN6
CASE 506AH
XXXXX
ALYWG
G
XXXXX = N1595, 1595A, 1595C
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
FB 1
6 NC
GND 2
5 VCC
LX 3
4 VCCP
NCP1595/NCP1595C
FB 1
6 EN
GND 2
5 VCC
LX 3
4 VCCP
NCP1595A
ORDERING INFORMATION
Device
Package
Shipping^†
NCP1595MNR2G
NCP1595MNT2G
NCP1595AMNR2G
DFN6
(Pb−Free)
3000 / Tape & Reel
NCP1595AMNTWG
NCP1595CMNTWG
†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.
© Semiconductor Components Industries, LLC, 2012
1
March, 2012 − Rev. 9
Publication Order Number:
NCP1595/D