TPS63000_15 Datasheet, PDF (1/25 Pages) Texas Instruments – TPS6300x High-Efficient Single Inductor Buck-Boost Converter With 1.8-A Switches

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TPS63000, TPS63001, TPS63002
SLVS520C – MARCH 2006 – REVISED OCTOBER 2015
TPS6300x High-Efficient Single Inductor Buck-Boost Converter With 1.8-A Switches
1 Features
•1 Input Voltage Range: 1.8 V to 5.5 V
• Fixed and Adjustable Output Voltage Options from
1.2 V to 5.5 V
• Up to 96% Efficiency
• 1200-mA Output Current at 3.3 V in Step-Down
Mode (V_IN = 3.6 V to 5.5 V)
• Up to 800-mA Output Current at 3.3 V in Boost
Mode (V_IN > 2.4 V)
• Automatic Transition Between Step-Down and
Boost Mode
• Device Quiescent Current less than 50 μA
• Power-Save Mode for Improved Efficiency at Low
Output Power
• Forced Fixed Frequency Operation and
Synchronization Possible
• Load Disconnect During Shutdown
• Overtemperature Protection
• Available in a Small 3-mm × 3-mm 10-Pin VSON
Package (QFN)
2 Applications
• All Two-Cell and Three-Cell Alkaline, NiCd or
NiMH or Single-Cell Li Battery Powered Products
• Portable Audio Players
• Smart Phones
• Personal Medical Products
• White LEDs
3 Description
The TPS6300x 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, 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 TPS6300x devices operate over a free air
temperature range of –40°C to 85°C. The devices are
packaged in a 10-pin VSON package (QFN)
measuring 3 mm × 3 mm (DRC).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS63000
TPS63001
VSON (10)
3.00 mm x 3.00 mm
TPS63002
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
VIN
1.8V to
5.5V
C1
10µF
Typical Application Schematic
R3
100S
C4
0.1µF
L1
2.2µH
L1
L2
VIN
VOUT
VINA
EN
FB
PS/SYNC
GND PGND
TPS63001
C2
10µF
C3
10µF
VOUT
3.3V up to
1200mA
Efficiency vs Output Current
100
90
80
70
60 ^{VI = 3.6 V}
V_I = 4.2 V
V_I = 2.4 V
50
40
30
20
10
0
0.001
TPS63001
V_O = 3.3 V
0.01
0.1
1
I_O - Output Current - A
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.