Advertisement
Quick Links
NCP6334GEVB
NCP6334B/C 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
NCP6334B/C, which includes demo board schematics, bill
of materials, PCB layout, jumper setup, and test procedure.
About NCP6334B/C
The NCP6334B/C, 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 and automatic PWM/PFM power
save mode offer improved system efficiency. The
NCP6334B
is
in
a
2.0 2.0 0.75 mm WDFN−8 package.
Features
2.3 V to 5.5 V Input Voltage Range
External Adjustable Voltage
Up to 2 A Output Current
0.68uH
Vo = 0.6V to Vin
PGND
Cout
SW
Cfb
22uF * 2
AGND
R1
FB
R2
(a) Power Good Output (NCP6334B)
Semiconductor Components Industries, LLC, 2012
Apr, 2019 − Rev. 2
space
saving,
low
profile
NCP6334B
Vin = 2.3V to 5.5V
PVIN
Cin
Rpg
AVIN
10uF
1M
Power Good
MODE/
PG
Enable
EN
Figure 1. Typical Application Circuits
EVAL BOARD USER'S MANUAL
3 MHz Switching Frequency
Synchronous Rectification
Automatic Power Save or External Mode Selection
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
Cellular Phones, Smart Phones, and PDAs
Portable Media Players
Digital Still Cameras
Wireless and DSL Modems
USB Powered Devices
Point of Load
Game and Entertainment System
1uH
Vo = 0.6V to Vin
Cout
10uF
Cfb
R1
R2
(b) External Mode Selection
(NCP6334C Available upon Request)
1
http://onsemi.com
NCP6334C
Vin = 2.3V to 5.5V
PGND
PVIN
Cin
SW
AVIN
10uF
MODE/
AGND
PG
Enable
FB
EN
Publication Order Number:
EVBUM2001/D
Mode
Advertisement
Related Manuals for ON Semiconductor NCP6334B
Summary of Contents for ON Semiconductor NCP6334B
- Page 1 3 MHz Switching Frequency This document is a manual file for a demo board of the Synchronous Rectification NCP6334B/C, which includes demo board schematics, bill Automatic Power Save or External Mode Selection of materials, PCB layout, jumper setup, and test procedure.
- Page 2 Input Digital PG pin is for NCP6334B with Power Good option. It is open drain output. Low level at this pin Output indicates the device is not in power good, while high impedance at this pin indicates the device is in power good.
- Page 3 NCP6334GEVB Electrical Characteristics Schematic of Demo Board electrical characteristics, please refer A schematic of NCP6334B/C demo board is shown in NCP6334B/C datasheet available website: Figure 2, which is for a typical application with 1.8 V output http://www.onsemi.com. voltage. It is flexible to configure the board for both PG devices (NCP6334B) and Mode devices (NCP6334C).
- Page 4 PCB Layout of Demo Board planes (middle1 layer and middle2 layer) and 2-once copper A 80 50 mm PCB is designed for NCP6334B/C demo traces on top layer and bottom layer of the board. Figure 3 board. It is a 4-layer board with 1-once internal ground shows layout information of the board.
- Page 5 Open and Inject AC Normal Operation Signal (for AC Test) (Default) 1.8V 2.3V ~ 5.5V Output Supply To Multi−Meter for Vin Measurement To Multi−Meter for Vo Measurement ( b ) NCP6334C Figure 4. Connections and Jumper Setup of NCP6334B/C Demo Board http://onsemi.com...
- Page 6 1.8 V output voltage of the demo board. high voltage spike in input. (a) Io = 10 mA (b) Io = 1000 mA Figure 5. Typical Operation Waveforms of NCP6334B/C Demo Board...
- Page 7 LIMITATIONS OF LIABILITY: ON Semiconductor shall not be liable for any special, consequential, incidental, indirect or punitive damages, including, but not limited to the costs of requalification, delay, loss of profits or goodwill, arising out of or in connection with the board, even if ON Semiconductor is advised of the possibility of such damages. In no event shall ON Semiconductor’s aggregate liability from any obligation arising out of or in connection with the board, under any theory of liability, exceed the purchase price paid for the board, if any.
Need help?
Do you have a question about the NCP6334B and is the answer not in the manual?
Questions and answers