TPS61088_15 Datasheet, PDF (1/30 Pages) Texas Instruments – TPS61088 10-A Fully-Integrated Synchronous Boost Converter

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS61088
SLVSCM8A – MAY 2015 – REVISED MAY 2015
TPS61088 10-A Fully-Integrated Synchronous Boost Converter
1 Features
•1 Input Voltage Range: 2.7 to 12 V
• Output Voltage Range: 4.5 to 12.6 V
• 10-A Switch Current
• Up to 91% Efficiency at V_IN = 3.3 V, V_OUT = 9 V,
and I_OUT = 3 A
• Mode Selection Between PFM Mode and Forced
PWM Mode at Light Load
• 1.0 µA Current into VIN Pin during Shutdown
• Resistor-Programmable Switch Peak Current Limit
• Adjustable Switching Frequency: 200 kHz to 2.2
MHz
• Programmable Soft Start
• Output Overvoltage Protection at 13.2 V
• Cycle-by-Cycle Overcurrent Protection
• Thermal Shutdown
• 4.50-mm × 3.50-mm 20-Pin VQFN Package
2 Applications
• Portable POS terminal
• Bluetooth™ Speaker
• E-Cigarette
• Thunderbolt Interface
• Quick Charge Power Bank
3 Description
The TPS61088 is a high power density, fully
integrated synchronous boost converter with a 11-mΩ
power switch and a 13-mΩ rectifier switch to provide
a high efficiency and small size solution in portable
systems. The TPS61088 has wide input voltage
range from 2.7 V to 12 V to support applications with
single cell or two cell Lithium batteries. The device
has 10-A switch current capability and is capable of
providing an output voltage up to 12.6 V.
The TPS61088 uses adaptive constant off-time peak
current control topology to regulate the output
voltage. In moderate to heavy load condition, the
TPS61088 works in the pulse width modulation
(PWM) mode. In light load condition, the device has
two operation modes selected by the MODE pin. One
is the pulse frequency modulation (PFM) mode to
improve the efficiency and another one is the forced
PWM mode to avoid application problems caused by
low switching frequency. The switching frequency in
the PWM mode is adjustable ranging from 200 kHz to
2.2 MHz by an external resistor. The TPS61088 also
implements a programmable soft-start function and
an adjustable switching peak current limit function. In
addition, the device provides 13.2-V output
overvoltage protection, cycle-by-cycle overcurrent
protection, and thermal shutdown protection.
The TPS61088 is available in a 4.50-mm × 3.50-mm
20-pin VQFN package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61088
VQFN (20)
4.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Typical Application Circuit
C6
VIN
C1
C2
L1
SW ^BOOT VOUT
FSW
R3
VIN
FB
C3
OFF
VCC
ON
EN
PGND
AGND
COMP
ILIM
SS
MODE
R1
R2
R5
C5
R4
C7
VOUT
C4
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.