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| NCP3011 Product Preview Synchronous PWM Controller 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 a 1.0 A gate driver and an internally set 400 kHz oscillator. The NCP3011 has an externally compensated transconductance error amplifier with an internally fixed softistart. 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 outiofiphase 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 14ipin TSSOP package. Features http://onsemi.com 14 1 TSSOPi14 DT SUFFIX CASE 948G * * * * * * * * * * * Input Voltage Range from 4.5 V to 28 V 400 kHz Operation 0.8 $1.0% Reference Voltage Buffered External +1.25 V Reference Current Limit and Short Circuit Protection Power Good Enable/Disable Pin Input and Output Voltage Protection External Synchronization Output Overvoltage and Undervoltage Protection This is a PbiFree Device MARKING DIAGRAM 14 NCP3011 ALYW 1 NCP3011 A L Y W = Device Code = Assembly Location = Wafer Lot = Year = Work Week Typical Applications * Set Top Box * Power Modules * ASIC / DSP Power Supply VIN 4.5 i 28 V CBST CIN EN PG VREF SYNC RREF C REF COMP VCC BST HSDR VSW LSDR R ISET GND FB RFB2 Q2 RFB1 CO Q1 LO VOUT PIN CONNECTIONS VREF EN NC SYNC PG COMP FB (TOP VIEW) VCC BST HSDR VSW NC LSDR GND ORDERING INFORMATION Device Package Shipping RC CC2 NCP3011DTBR2G TSSOPi14 (PbiFree) 2500/Tape&Reel C C1 Figure 1. Typical Application Circuit This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice. 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. (c) Semiconductor Components Industries, LLC, 2009 1 October, 2009 i Rev. P1 Publication Order Number: NCP3011/D |
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