ON Semiconductor NCV6323C User Manual

3 mhz, 2 a, high efficiency, low ripple, adjustable output voltage, synchronous buck converter

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NCV6323GEVB
NCV6323C/D Evaluation
Board User's Manual
3 MHz, 2 A, High Efficiency, Low Ripple,
Adjustable Output Voltage, Synchronous
Buck Converter

Overview

This document is a manual file for a demo board of the
NCV6323C/D, which includes demo board schematics, bill
of materials, PCB layout, jumper setup, and test procedure.

About NCV6323C/D

The NCV6323C/D, a family of synchronous buck
converters, which is optimized to supply different sub
systems of portable applications powered by one cell Li-ion
or three cell Alkaline/NiCd/NiMH batteries. The devices are
able to deliver up to 2 A on an external adjustable voltage
range from 0.6 V to 3.3 V. Operation with 3 MHz switching
frequency allows employing small size inductor and
capacitors. Input supply voltage feed-forward control is
employed to deal with wide input voltage range.
Synchronous rectification PWM offers improved system
efficiency. The NCV6323C is in a space saving, low profile
2.0 × 2.0 × 0.75 mm WDFN−8 package.

Features

2.5 V to 5.5 V Input Voltage Range
External Adjustable Voltage
Up to 2 A Output Current
© Semiconductor Components Industries, LLC, 2014
March, 2018 − Rev. 0
1 uH
Vo = 0.6 V to Vin
PGND
Cout
SW
Cfb
10 uF
R1
AGND
FB
R2
Figure 1. Typical Application Circuits
EVAL BOARD USER'S MANUAL
3 MHz Switching Frequency
PWM Synchronous Rectification
Enable Input
Power Good Output
Soft Start
Over Current Protection
Active Discharge When Disabled. Hi−Z Version
Available upon Request
Thermal Shutdown Protection
WDFN−8, 2 × 2 mm, 0.5 mm Pitch Package
Maximum 0.8 mm Height for Super Thin Applications

Typical Applications

Automotive Clusters
Automotive Cameras (Rear, Front, Side View)
Automotive ADAS
Automotive Multimedia Systems
Point Of Load
Game and Entertainment System
NCV6323C
Vin = 2.5 V to 5.5 V
PVIN
Cin
Rpg
10 uF
AVIN
1 M
Power Good
PG
Enable
EN
1
www.onsemi.com
Publication Order Number:
EVBUM2555/D

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Summary of Contents for ON Semiconductor NCV6323C

  • Page 1 • Synchronous rectification PWM offers improved system Automotive Clusters efficiency. The NCV6323C is in a space saving, low profile • Automotive Cameras (Rear, Front, Side View) 2.0 × 2.0 × 0.75 mm WDFN−8 package.
  • Page 2 NCV6323GEVB Table 1. PIN DESCRIPTION Name Type Description PGND Power Power Ground for power, analog blocks. Must be connected to the system ground. Ground Power Switch Power pin connects power transistors to one end of the inductor. Output AGND Analog Analog Ground analog and digital blocks.
  • Page 3 NCV6323GEVB Electrical Characteristics Schematic of Demo Board electrical characteristics, please refer A schematic of NCV6323C/D evaluation board is shown NCV6323C/D datasheet available website: in Figure 2, which is for a typical application with 1.8 V http://www.onsemi.com. output voltage. It is flexible to configure the board.
  • Page 4 PCB Layout of Demo Board ground planes (middle1 layer and middle2 layer) and 2-once A 80 × 50 mm PCB is designed for NCV6323C/D copper traces on top layer and bottom layer of the board. evaluation board. It is a 4-layer board with 1-once internal Figure 3 shows layout information of the board.
  • Page 5 Short Rfb in Open and Inject AC Normal Operation Signal (for AC Test) (Default) 1.8V 2.5V ~ 5.5V Output Supply To Multi−Meter for Vin Measurement To Multi−Meter for Vo Measurement Figure 4. Connections and Jumper Setup of NCV6323C/D Evaluation Board www.onsemi.com...
  • Page 6 6. Enable the output of the power supply and check the 1.8 V output voltage of the evaluation board. Io = 1000 mA Figure 5. Typical Operation Waveforms of NCV6323C/D Evaluation Board www.onsemi.com...
  • Page 7 onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf.

This manual is also suitable for:

Ncv6323d

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