TPS63070 Datasheet, PDF (1/39 Pages) Texas Instruments – 2-V to 16-V Buck-Boost Converter With 3.6-A Switch Current

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS63070
TPS630701
SLVSC58A – JUNE 2016 – REVISED AUGUST 2016
TPS63070 2-V to 16-V Buck-Boost Converter With 3.6-A Switch Current
1 Features
•1 Input Voltage Range: 2.0 V to 16 V
• Output Voltage Range: 2.5 V to 9 V
• Up to 95% Efficiency
• +/- 1% dc accuracy in PWM mode
• +3% / -1% dc accuracy in PFM mode
• 2 A Output Current in Buck Mode
• 2 A Output Current in Boost Mode
(VIN = 4 V; Vout = 5 V)
• Precise ENABLE input allows
– user defined undervoltage lockout
– exact sequencing
• Automatic Transition Between Step Down and
Boost Mode
• Typical Device Quiescent Current: 50 μA
• Fixed and Adjustable Output Voltage Options
• Power Save Mode for Improved Efficiency at Low
Output Power
• Forced Fixed Frequency Operation at 2.4 MHz
and Synchronization Option
• Power Good Output
• VSEL simply allows output voltage change
• Load Disconnect During Shutdown
• Overtemperature Protection
• Input / Output Overvoltage Protection
• Available in QFN Package
Simplified Schematic
L
1.5 µH
VIN = 2.0 V to 16 V
C1
CIN
10 µF
2x10 µF
0603
0805
R5
10 kΩ
L1 _TPS63070 L2
VOUT
VIN
VSEL
EN
FB
FB2
PG
C4
10 µF
0603
VOUT = 2.5 V to 9 V
COUT
R1
3x22 µF
0805
R4
R2 ^{100 kΩ}
PS/SYNC PGND
CVAUX
100 nF
VAUX
GND
Copyright © 2016, Texas Instruments Incorporated
2 Applications
• Dual LI-Ion Applications
• Industrial Metering Equipment
• DSC's and Camcorders
• Notebook Computers
• Ultra Mobile PC's and Mobile Internet Devices
• Personal Medical Products
3 Description
The TPS6307x is a high efficiency, low quiescent
current buck-boost converter suitable for applications
where the input voltage can be higher or lower than
the output voltage. Output currents can go as high as
2 A in boost mode and in buck mode. 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 converter can be disabled to minimize
battery drain. During shutdown, the load is
disconnected from the battery. The device is available
in a 2.5 mm x 3 mm QFN package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS63070
VQFN
2.5 mm x 3 mm
TPS630701
VQFN
2.5 mm x 3 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Output Current; Vo = 5 V
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0
100P
1m
10m
100m
Output Current (A)
3V
4.2 V
5V
7V
9V
12 V
12
D001
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.