NCP6360 Datasheet, PDF (1/17 Pages) ON Semiconductor – nullMini Buck Converter for RF Power Amplifiers

NCP6360
Mini Buck Converter for
RF Power Amplifiers
The NCP6360, a PWM synchronous step−down DC−to−DC
converter, is optimized for supplying RF Power Amplifiers (PAs) used
into 3G/4G wireless systems (Mobile/ Smart Phones, Phablets,
Tablets, ...) powered by single−cell Lithium−Ion batteries. The device
is able to deliver up to 800 mA. The output voltage is monitorable
from 0.6 V to 3.4 V by an analog control pin VCON. The analog
control allows dynamically optimizing the RF Power Amplifier’s
efficiency during a communication while for example in roaming
situation with as a benefit an increased talk time. Also at light load for
optimizing the DC−to−DC converter efficiency, the NCP6360 enters
automatically in a PFM mode and operates in a slower switching
frequency corresponding to a reduced quiescent current in regards to
the PWM mode for which the device operates at a switching frequency
of 6 MHz. Synchronous rectification offers improved system
efficiency. The NCP6360 is available in a space saving, low profile
1.5 x 1.0 mm CSP−6 package.
Features
• Input Voltage from 2.7 V to 5.5 V for Battery Powered Applications
• Adjustable Output Voltage (0.6 V to 3.4 V)
• 6 MHz Switching Frequency
• Uses 470 nH Inductor and 4.7 mF Capacitor for Optimized Footprint
and Solution Thickness
• PFM /PWM Automatic Mode Change for High Efficiency
• Low 30 mA Quiescent Current
• Thermal Protections to Avoid Damage of the IC
• Small 1.5 x 1.0 mm / 0.5 mm Pitch CSP Package
• This is a Pb−Free Device
Typical Applications
• 3G / 4G Wireless Systems, Smart Phones, Phablets and Webtablets
http://onsemi.com
WLCSP6, 1.00x1.50
CASE 568AN
MARKING DIAGRAM
60
AYW
G
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 16 of this data sheet.
VCON
Voltage control
From external DAC
EN
Processor or
System Supply
NCP6360
Vout Control
Thermal
Protection
Enabling
DCDC
Buck
1.0 A
6.0 MHz
FB
PVIN
VBAT
(Battery or System Supply)
10 mF
SW
DCDC Out
0.47 mH
PGND
4.7 mF
Rev 0.00
Figure 1. NCP6360 Block Diagram
© Semiconductor Components Industries, LLC, 2014
1
February, 2014 − Rev. 2
Publication Order Number:
NCP6360/D