NCP3011, NCV3011 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 integrated gate drivers and an internally set 400 kHz oscillator. The NCP3011 has an externally compensated transconductance error amplifier with an internally fixed softstart. www.onsemi.com 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 14 Mode) or outputs a 180 outofphase clock signal to drive another NCP3011 (Master Mode). Protection features include lossless current 1 limit and short circuit protection, output overvoltage and undervoltage TSSOP14 DT SUFFIX protection, and input undervoltage lockout. The NCP3011 is available CASE 948G in a 14pin TSSOP package. MARKING DIAGRAM Features Input Voltage Range from 4.7 V to 28 V 14 14 3011 3011 400 kHz Operation V ALYW 0.8 V 1.0% Reference Voltage ALYW Buffered External +1.25 V Reference 1 1 Current Limit and Short Circuit Protection NCP3011 NCV3011 Power Good 3011= Device Code Enable/Disable Pin A = Assembly Location Input Undervoltage Lockout L = Wafer Lot Y = Year External Synchronization W = Work Week Output Overvoltage and Undervoltage Protection = PbFree Package NCV Prefix for Automotive and Other Applications Requiring Site (Note: Microdot may be in either location) and Change Controls This is a PbFree Device PIN CONNECTIONS Typical Applications VREF VCC BST Set Top Box EN HSDR NC Power Modules SYNC VSW ASIC / DSP Power Supply PG NC VIN COMP LSDR C BST FB GND CIN BST VCC (Top View) Q1 EN HSDR LO V OUT PG VSW ORDERING INFORMATION RFB1 Q2 VREF LSDR C Device Package Shipping O R ISET RFB2 SYNC GND NCP3011DTBR2G TSSOP14 2500 / Tape & Reel (PbFree) FB R COMP REF NCV3011DTBR2G TSSOP14 2500 / Tape & Reel (PbFree) RC CREF C For information on tape and reel specifications, C1 C C2 including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Figure 1. Typical Application Circuit Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: July, 2018 Rev. 5 NCP3011/DNCP3011, NCV3011 VCC INTERNAL BIAS BST EN POR/STARTUP ENABLE/ POWER GOOD VC LOGIC THERMAL SD PG BOOST CLAMP SYNC LEVEL HSDR CLK/ SHIFT DMAX/ OSCILLATOR SOFT START VSW VCC GATE CURRENT SAMPLE & RAMP DRIVE HOLD LIMIT 1.25 V VREF LOGIC REFERENCE 1.5 V ISET + VC COMP REF PWM LSDR COMP OTA FB + BST CHRG OOV OUV GND + Figure 2. NCP3011 Block Diagram www.onsemi.com 2