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.
http://onsemi.com
MARKING
DIAGRAM
1
XXXXX
ALYWG
G
DFN6
CASE 506AH
XXXXX = N1595, 1595A, 1595C
A
L
Y
W
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
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
(Note: Microdot may be in either location)
PIN CONNECTIONS
FB
GND
LX
1
2
3
6 NC
5
4
VCC
• 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
VCCP
NCP1595/NCP1595C
FB
GND
LX
1
2
3
6 EN
5
4
VCC
Applications
• DSP Power
VCCP
• Hard Disk Drivers
• Computer Peripherals
• Home Audio
NCP1595A
ORDERING INFORMATION
• Set−Top Boxes
†
• Networking Equipment
• LCD TV
• Wireless and DSL/Cable Modem
• USB Power Devices
Device
Package
Shipping
NCP1595MNR2G
NCP1595MNT2G
NCP1595AMNR2G
NCP1595AMNTWG
NCP1595CMNTWG
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.
© Semiconductor Components Industries, LLC, 2014
1
Publication Order Number:
March, 2014 − Rev. 11
NCP1595/D