The NCP3011 is a PWM device designed to operate from a wide

input range and is capable of producing an output voltage as low as

0.8 V. The NCP3011 provides integrated gate drivers and an internally

set 400 kHz oscillator. The NCP3011 has an externally compensated

transconductance error amplifier with an internally fixed soft−start.

The NCP3011 incorporates output voltage monitoring with a Power

Good pin to indicate that the system is in regulation. The dual function

SYNC pin synchronizes the device to a higher frequency (Slave

Mode) or outputs a 180° out−of−phase clock signal to drive another

NCP3011 (Master Mode). Protection features include lossless current

limit and short circuit protection, output overvoltage and undervoltage

protection, and input undervoltage lockout. The NCP3011 is available

in a 14−pin TSSOP package.

Features

• Input Voltage Range from 4.7 V to 28 V

• 400 kHz Operation

• 0.8 V 1.0 Reference Voltage

• Buffered External +1.25 V Reference

• Current Limit and Short Circuit Protection

• Power Good

• Enable/Disable Pin

• Input Undervoltage Lockout

• External Synchronization

• Output Overvoltage and Undervoltage Protection

• NCV Prefix for Automotive and Other Applications Requiring Site

and Change Controls

• This is a Pb−Free Device

Typical Applications

• Set Top Box

• Power Modules

• ASIC / DSP Power Supply