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TPS63000-Q1 Datasheet Preview

TPS63000-Q1 Datasheet

HIGH-EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER

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TPS63000-Q1
www.ti.com ...................................................................................................................................................................................................... SLVS968 – JUNE 2009
HIGH-EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 1.8-A SWITCH
FEATURES
1
23 Qualified for Automotive Applications
Up to 96% Efficiency
1200-mA Output Current at 3.3 V in Step Down
Mode (VIN = 3.6 V to 5.5 V)
Up to 800-mA Output Current at 3.3 V in Boost
Mode (VIN > 2.4 V)
Automatic Transition between Step Down and
Boost Mode
Device Quiescent Current Less Than 50 µA
Input Voltage Range: 1.8 V to 5.5 V
Adjustable Output Voltage From 1.2 V to 5.5 V
Power Save Mode for Improved Efficiency at
Low Output Power
Forced Fixed Frequency Operation and
Synchronization Possible
Load Disconnect During Shutdown
Over-Temperature Protection
Available in Small 3 mm × 3 mm, QFN-10
Package
APPLICATIONS
All Two-Cell and Three-Cell Alkaline, NiCd or
NiMH or Single-Cell Li Battery Powered
Products
Portable Audio Players
PDAs
Cellular Phones
Personal Medical Products
White LEDs
DESCRIPTION
The TPS63000 devices provide a power supply solution for products powered by either a two-cell or three-cell
alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 1200
mA while using a single-cell Li-Ion or Li-Polymer battery, and discharge it down to 2.5 V 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 1800 mA. The output voltage is programmable using an external resistor divider. 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 QFN PowerPAD™ package measuring 3 mm × 3 mm (DRC).
L1
2.2µH
VIN
1.8V to
5.5V
C1
10µF
L1 L2
VIN
VINA
VOUT
EN
PS/SYNC
FB
GND PGND
TPS63000
C2
10µF
VOUT
3.3V up to
1200mA
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.
PowerPAD is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
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 © 2009, Texas Instruments Incorporated




etcTI

TPS63000-Q1 Datasheet Preview

TPS63000-Q1 Datasheet

HIGH-EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER

No Preview Available !

TPS63000-Q1
SLVS968 – JUNE 2009 ...................................................................................................................................................................................................... www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
TA
–40°C to 85°C
QFN – DRC
ORDERING INFORMATION(1)
PACKAGE (2)
ORDERABLE PART NUMBER
Reel of 3000
TPS63000IDRCRQ1
TOP-SIDE MARKING
ODJ
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
Input voltage range on VIN, VINA, L1, L2, VOUT, PS/SYNC, EN, FB
Operating virtual junction temperature range, TJ
Storage temperature range Tstg
–0.3 V to 7 V
–40°C to 150°C
–65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods my affect device reliability.
DISSIPATION RATINGS TABLE
PACKAGE
DRC
THERMAL RESISTANCE
θJA
48.7°C/W
POWER RATING
TA 25°C
2054 mW
DERATING FACTOR ABOVE
TA = 25°C
21 mW/°C
RECOMMENDED OPERATING CONDITIONS
VI Input voltage
VI Input voltage for startup
VO Output voltage
TA Operating free air temperature
TJ Operating virtual junction temperature
MIN MAX UNIT
1.8 5.5 V
1.9 5.5 V
1.2 5.5 V
–40 85 °C
–40 125 °C
2 Submit Documentation Feedback
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TPS63000-Q1


Part Number TPS63000-Q1
Description HIGH-EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER
Maker etcTI
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