NCP3030A, NCP3030B, NCV3030A, NCV3030B Synchronous PWM Controller The NCP3030 is a PWM device designed to operate from a wide input range and is capable of producing an output voltage as low as 0.6 V. The NCP3030 provides integrated gate drivers and an internally www.onsemi.com set 1.2 MHz (NCP3030A) or 2.4 MHz (NCP3030B) oscillator. The NCP3030 also has an externally compensated transconductance error amplifier with an internally fixed softstart. Protection features 8 include lossless current limit and short circuit protection, output 1 overvoltage protection, output undervoltage protection, and input undervoltage lockout. The NCP3030 is currently available in a SOIC8 NB CASE 751 SOIC8 package. Features MARKING DIAGRAM Input Voltage Range from 4.7 V to 28 V 8 1.2 MHz Operation (NCP3030B 2.4 MHz) 3030x 0.8 V Internal Reference Voltage ALYW Internally Programmed 1.8 ms SoftStart (NCP3030B 1.3 ms) 1 Current Limit and Short Circuit Protection 3030x = Specific Device Code Transconductance Amplifier with External Compensation x = A or B Input Undervoltage Lockout A = Assembly Location L = Wafer Lot Output Overvoltage and Undervoltage Detection Y = Year NCV Prefix for Automotive and Other Applications Requiring Site W = Work Week and Change Controls = PbFree Package These are PbFree Devices PIN CONNECTIONS V IN BST V C CC IN COMP HSDR C BST FB VSW VCC BST GND LSDR Q1 HSDR L Vout 0 ORDERING INFORMATION COMP VSW Device Package Shipping R FB1 C Q2 R C1 C NCP3030ADR2G SOIC8 2500 / Tape & Reel FB LSDR C 0 (PbFree) R C GND C2 FB2 R ISET NCP3030BDR2G SOIC8 2500 / Tape & Reel (PbFree) NCV3030ADR2G SOIC8 2500 / Tape & Reel (PbFree) Figure 1. Typical Application Circuit NCV3030BDR2G SOIC8 2500 / Tape & Reel (PbFree) 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, 2011 1 Publication Order Number: July, 2018 Rev. 2 NCP3030/DNCP3030A, NCP3030B, NCV3030A, NCV3030B VCC INTERNAL BIAS BST POR/STARTUP VC THERMAL SD BOOST CLAMP LEVEL HSDR CLK/ SHIFT DMAX/ OSCILLATOR SOFT START VSW VCC GATE CURRENT SAMPLE & RAMP DRIVE HOLD LIMIT LOGIC 1.5 V ISET + VC COMP REF PWM LSDR COMP OTA FB + BST CHRG OOV OUV GND + Figure 2. NCP3030 Block Diagram PIN FUNCTION DESCRIPTION Pin Pin Name Description 1 V The V pin is the main voltage supply input. It is also used in conjunction with the VSW pin to sense current CC CC in the high side MOSFET. 2 COMP The COMP pin connects to the output of the Operational Transconductance Amplifier (OTA) and the positive terminal of the PWM comparator. This pin is used in conjunction with the FB pin to compensate the voltage mode control feedback loop. 3 FB The FB pin is connected to the inverting input of the OTA. This pin is used in conjunction with the COMP pin to compensate the voltage mode control feedback loop. 4 GND Ground Pin 5 LSDR The LSDR pin is connected to the output of the low side driver which connects to the gate of the low side NFET. It is also used to set the threshold of the current limit circuit (I ) by connecting a resistor from LSDR SET to GND. 6 VSW The VSW pin is the return path for the high side driver. It is also used in conjunction with the V pin to sense CC current in the high side MOSFET. 7 HSDR The HSDR pin is connected to the output of the high side driver which connects to the gate of the high side NFET. 8 BST The BST pin is the supply rail for the gate drivers. A capacitor must be connected between this pin and the VSW pin. www.onsemi.com 2