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TPS63020 Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce TPS63020
Description  TPS6302x High Efficiency Single Inductor Buck-Boost Converter With 4-A Switches
Download  29 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS63020 Fiches technique(HTML) 1 Page - Texas Instruments

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V
IN
L1
VIN
VINA
EN
PS/SYNC
GND
L2
VOUT
FB
PGND
L
1 1µH
C
2
C
3
2.5 V to 5.5V
V
OUT
3.3V2A
TPS63020
PG
Power Good
Output
C
1
2X10µF
0.1µF
4X22µF
1M
180k
R
1
R
2
1M
R
3
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Product
Folder
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Buy
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Documents
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Software
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Community
TPS63020, TPS63021
SLVS916D – JULY 2010 – REVISED OCTOBER 2015
TPS6302x High Efficiency Single Inductor Buck-Boost Converter With 4-A Switches
1 Features
3 Description
The TPS6302x devices provide a power supply
1
Input Voltage Range: 1.8 V to 5.5 V
solution for products powered by either a two-cell or
Fixed and Adjustable Output Voltage Options from
three-cell alkaline, NiCd or NiMH battery, or a one-
1.2 V to 5.5 V
cell Li-ion or Li-polymer battery. Output currents can
Up to 96% Efficiency
go as high as 3 A while using a single-cell Li-ion or
Li-polymer battery, and discharge it down to 2.5 V or
3-A Output Current at 3.3 V in Step Down Mode
lower. The buck-boost converter is based on a fixed
(VIN = 3.6 V to 5.5 V)
frequency, pulse width modulation (PWM) controller
More than 2-A Output Current at 3.3 V in Boost
using synchronous rectification to obtain maximum
Mode (VIN > 2.5 V)
efficiency. At low load currents, the converter enters
Automatic Transition Between Step Down and
power save mode to maintain high efficiency over a
wide load current range. The power save mode can
Boost Mode
be disabled, forcing the converter to operate at a
Dynamic Input Current Limit
fixed switching frequency. The maximum average
Device Quiescent Current less than 50
μA
current in the switches is limited to a typical value of
Power Save Mode for Improved Efficiency at Low
4 A. The output voltage is programmable using an
external resistor divider, or is fixed internally on the
Output Power
chip. The converter can be disabled to minimize
Forced Fixed Frequency Operation at 2.4 MHz
battery
drain.
During
shutdown,
the
load
is
and Synchronization Possible
disconnected from the battery.
Smart Power Good Output
The TPS6302x devices operate over a free air
Load Disconnect During Shutdown
temperature range of –40°C to 85°C. The devices are
Overtemperature Protection
packaged in a 14-pin VSON package measuring
3mm × 4mm (DSJ).
Overvoltage Protection
Available in a 3mm × 4mm 14-Pin VSON Package
Device Information(1)
(DSJ)
OUTPUT VOLTAGE
PART NUMBER
PACKAGE
DC/DC
2 Applications
TPS63020
Adjustable
VSON (14)
All Two-Cell and Three-Cell Alkaline, NiCd or
TPS63021
3.3 V
NiMH or Single-Cell Li Battery Powered Products
(1) For all available packages, see the orderable addendum at
Ultra Mobile PCs and Mobile Internet Devices
the end of the datasheet.
Digital Media Players
Efficiency vs Output Current
Digital Still Cameras (DSC) and Camcorders
Mobile Phones and Smart Phones
Personal Medical Products
Industrial Metering Equipment
High Power LEDs
SPACE
Typical Application Schematic
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.


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