NCP6354_12 Datasheet, PDF (1/15 Pages) ON Semiconductor – 3MHz, 2A Fixed-Frequency Synchronous Buck Converter

NCP6354
3MHz, 2A Fixed-Frequency
Synchronous Buck
Converter
High Efficiency, Low Ripple, Adjustable
Output Voltage
The NCP6354, a synchronous buck converter, which is optimized to
supply the different sub systems of portable applications powered by
one cell Li−ion or three cell Alkaline/NiCd/NiMH batteries. The
device is able to deliver up to 2 A on an external adjustable voltage.
Operation with 3 MHz switching frequency allows employing small
size inductor and capacitors. Input supply voltage feedforward control
is employed to deal with wide input voltage range. Synchronous
rectification offers improved system efficiency. The NCP6354 is in a
space saving, low profile 2.0x2.0x0.75 mm WDFN−8 package.
Features
• 2.3 V to 5.5 V Input Voltage Range
• External Adjustable Voltage
• Up to 2 A Output Current
• 3 MHz Switching Frequency
• Synchronous Rectification
• Enable Input
• Power Good Output
• Soft Start
• Over Current Protection
• Active Discharge when Disabled
• Thermal Shutdown Protection
• WDFN−8, 2x2 mm, 0.5 mm Pitch Package
• Maximum 0.8 mm Height for Super Thin Applications
• These are Pb−Free Devices
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
http://onsemi.com
1
WDFN8
CASE 511BE
MARKING
DIAGRAM
1
A2MG
G
A2 = Specific Device Code
M = Date Code
G = Pb−Free Package
(*Note: Microdot may be in either location)
BLOCK DIAGRAM
PGND 1
SW 2
AGND ³
FB ⁴
9
(Top View)
8 ^PVIN
7 ^AVIN
6 ^PG
5 EN
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 14 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
1
November, 2012 − Rev. 2
Publication Order Number:
NCP6354/D