Buck Converter - Synchronous 3 MHz, 2 A NCP6324, NCV6324 The NCP/NCV6324, a family of synchronous buck converters, which is optimized to supply different sub systems of portable www.onsemi.com applications powered by one cell Liion or three cell Alkaline/NiCd/ NiMH batteries. The devices are able to deliver up to 2 A on an external adjustable voltage. Operation with 3 MHz switching MARKING frequency allows employing small size inductor and capacitors. Input 1 DIAGRAM supply voltage feedforward control is employed to deal with wide WDFN8 input voltage range. Synchronous rectification and automatic CASE 511BE 1 PWM/PFM power save mode offer improved system efficiency. The XX M NCP/NCV6324 is in a space saving, low profile 2.0 x 2.0 x 0.75 mm 1 WDFN8 package or a WDFNW8 wettable flank package. WDFNW8 CASE 511CL Features 2.5 V to 5.5 V Input Voltage Range XX = Specific Device Code External Adjustable Voltage M = Date Code = PbFree Package Up to 2 A Output Current (Note: Microdot may be in either location) 3 MHz Switching Frequency Synchronous Rectification Automatic Power Save (NCx6324B) or External Mode Selection PINOUT (NCx6324C) Enable Input PGND 1 8 PVIN Power Good Output Option (NCx6324B) Soft Start SW 2 7 AVIN Over Current Protection 9 Active Discharge When Disabled AGND 3 6 MODE/PG Thermal Shutdown Protection WDFN8, 2 x 2 mm, 0.5 mm Pitch Package and FB 4 5EN WDFNW8, 2 x 2 mm, 0.5 mm Pitch Package with Wettable Flanks Maximum 0.8mm Height for Super Thin Applications (Top View) NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 ORDERING INFORMATION Qualified and PPAP Capable See detailed ordering, marking and shipping information on These Devices are PbFree, Halogen Free/BFR Free and are RoHS page 2 of this data sheet. Compliant Typical Applications Cellular Phones, Smart Phones, and PDAs USB Powered Devices Portable Media Players Point of Load Digital Still Cameras Game and Entertainment System Wireless and DSL Modems Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: July, 2020 Rev. 8 NCP6324/DNCP6324, NCV6324 ORDERING INFORMATION Device Marking Package Shipping NCP6324BMTAATBG 4A NCV6324BMTAATBG* CE WDFN8 (PbFree) NCP6324CMTAATBG C4 3000 / Tape & Reel NCV6324CMTAATBG* HA NCV6324BMTAAWTBG* WC WDFNW8 with Wettable Flanks (PbFree) NCV6324CMTAAWTBG* LF 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. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable. NCx6324B NCx6324C 1uH Vo = 0.6V to Vin 1uH Vin = 2.5V to 5.5V Vin = 2.5V to 5.5V Vo = 0.6V to Vin PGND PVIN PGND PVIN Cin Rpg Cout Cout Cin SW AVIN SW AVIN 10uF 10uF 1M Cfb Power Good Cfb Mode 10uF 10uF AGND PG AGND MODE R1 R1 Enable Enable FB EN FB EN R2 R2 (a) Power Good Output Option (b) External Mode Selection (NCx6324B) (NCx6324C) Figure 1. Typical Application Circuits www.onsemi.com 2