TPS61288
SLVSFP3B – AUGUST 2020 – REVISED DECEMBER 2021
TPS61288 18-V, 15-A, Fully Integrated Synchronous Boost Converter
1 Features
3 Description
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Wide input voltage and output voltage range
– VIN : 2.0 V to 18 V
– 2.4-V Minimum input voltage for start-up
– VOUT : 4.5 V to 18 V
High efficiency and power capability
– 15-A peak switch current limit
– Two 6.5-mΩ (LS) / 8.5-mΩ (HS) MOSFETs
– Switching frequency: 500 kHz
– Up to 94.7% efficiency at VIN = 3.6 V, VOUT = 13
V, and IOUT = 2 A
The TPS61288 is a high-power density, fully-
integrated synchronous boost converter with a 6.5-
mΩ power switch and a 8.5-mΩ rectifier switch to
provide a high efficiency and small size solution
in portable systems. The TPS61288 has a wide
input voltage range from 2 V (2.4 V rising) to 18
V to support applications with single-cell or two-cell
Lithium batteries. The device has 15-A switch current
capability and is capable of providing an output
voltage up to 18 V.
•
– Up to 96.9% efficiency at VIN = 7.2 V, VOUT = 16
V, and IOUT = 2.5 A
Extend the system operating time
– Typical 110-µA quiescent current into VOUT pin
– Maximum 2.1-µA current into VIN pin during
shutdown
– Smooth on-time/off-time (SOO) modulation at
light load and low duty cycle and no DC offset
between PFM and PWM
The TPS61288 employs peak current control topology
with SOO modulation to regulate the output voltage.
The device operates in the pulse width modulation
(PWM) mode in moderate to heavy load condition. It
automatically runs in the pulse frequency modulation
(PFM) mode in light load and low duty cycle condition.
SOO modulation realizes accurate regulation over
wide load/VIN range while maintaining high efficiency
and low output ripple. The switching frequency
in the PWM mode is 500 kHz. The TPS61288
provides 19-V output overvoltage protection, cycle-by-
cycle overcurrent protection, and thermal shutdown
protection.
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•
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Rich protection
– Output overvoltage protection at 19 V
– Cycle-by-cycle overcurrent protection
– Thermal shutdown
2.5-mm × 3.0-mm QFN package with HotRod™
Lite option
The TPS61288 is available in a 2.5-mm × 3.0-mm
QFN package.
2 Applications
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE (NOM)
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Bluetooth™ speaker
Source driver of LCD display
USB type-C power delivery
TPS61288
QFN (11)
2.5-mm × 3.0-mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN
VOUT
SW
VOUT
R1
Control
BST
FB
VIN
EN
ON
R2
OFF
COMP
Cc
Rc
VCC
Cp
PGND
AGND
Typical Application Circuit
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.