Onsemi NCP1595A

Description

The NCP1595/A/C family are fixed 1 MHz, high−output−current,synchronous PWM converters that integrate a low−resistance,vhigh−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 A 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 mΩ High−Side Switching P−Channel MOSFET and90mΩ 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

Typical applications

• USB Power Devices
• Set−Top Boxes
• Home Audio
• Networking Equipment
• Wireless and DSL/Cable Modem
• DSP Power
• Hard Disk Drivers
• LCD TV
• Computer Peripherals

More information

• Datasheet
• IC product information