TPS63060 Datasheet, PDF (1/31 Pages) Texas Instruments – HIGH INPUT VOLTAGE BUCK-BOOST CONVERTER WITH 2A SWITCH CURRENT

TPS63060
TPS63061
www.ti.com
SLVSA92A – DECEMBER 2011 – REVISED FEBRUARY 2012
HIGH INPUT VOLTAGE BUCK-BOOST CONVERTER WITH 2A SWITCH CURRENT
Check for Samples: TPS63060, TPS63061
FEATURES
1
•2 Up to 93% Efficiency
• 2A/1A Output Current at 5V in Buck Mode
• 1.3A Output Current at 5V in Boost Mode
(VIN>4V)
• Automatic Transition Between Step Down and
Boost Mode
• Typical Device Quiescent Current less than
30μA
• Input Voltage Range: 2.5V to 12V
• Fixed and Adjustable Output Voltage Options
from 2.5V to 8V
• Power Save Mode for Improved Efficiency at
Low Output Power
• Forced Fixed Frequency Operation at 2.4MHz
and Synchronization Possible
• Power Good Output
• Buck-Boost Overlap Control™
• Load Disconnect During Shutdown
• Overtemperature Protection
• Overvoltage Protection
• Available in a 3-mm × 3-mm, SON-10 Package
APPLICATIONS
• Dual LI-Ion Application
• DSC's and Camcorders
• Notebook Computer
• Industrial Metering Equipment
• Ultra Mobile PC's and Mobile Internet Devices
• Personal Medical Products
• High Power LED's
DESCRIPTION
The TPS6306x devices provide a power supply solution for products powered by either three-cell up to six-cell
alkaline, NiCd or NiMH battery, or a one-cell or dual-cell Li-Ion or Li-polymer battery. Output currents can go as
high as 2A while using a dual-cell Li-Ion or Li-Polymer Battery, and discharge it down to 5V or lower. The
buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous
rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to
maintain high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the
converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a
typical value of 2.25A. The output voltage is programmable using an external resistor divider, or is fixed internally
on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected
from the battery. The device is packaged in a 10-pin SON PowerPAD™ package measuring 3mm × 3mm (DSC).
V_IN
2.5 V to 12V
C₁
2X10µF
C₃
0.1µF
L₁
1µH
L1
L2
VIN
VOUT
EN
FB
VAUX
PS/SYNC
PG
GND
PGND
TPS63060
R₁
1MΩ
R₂
111kΩ
V_OUT
5V /800mA
R₃
1MΩ
C₂
3X22µF
C₄
10pF
Power Good
Output
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Buck-Boost Overlap Control, PowerPAD are trademarks of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2012, Texas Instruments Incorporated