TPS55288-Q1
SLVSFQ7A – DECEMBER 2020 – REVISED DECEMBER 2021
TPS55288-Q1 36-V, 16-A Buck-boost Converter with I2C Interface
1 Features
3 Description
•
AEC-Q100 qualified:
The TPS55288-Q1 is a synchronous four-switch buck-
boost converter capable of regulating the output
voltage at, above, or below the input voltage. The
TPS55288-Q1 operates over 2.7-V to 36-V wide input
voltage and is capable of outputing 0.8-V to 22-V
voltage to support a variety of applications.
– Device temperature grade 1: –40°C to +125°C
ambient operating temperature range
Programmable power supply (PPS) support for
USB power delivery (USB PD)
– Wide input voltage range: 2.7 V to 36 V
– Programmable output voltage range: 0.8 V to
22 V with 20-mV step
– ±1% reference voltage accuracy
– Adjustable output voltage compensation for
voltage droop over the cable
•
The TPS55288-Q1 integrates two 16-A MOSFETs
of the boost leg to balance the solution size and
efficiency. With the programmable output voltage
and output current limit through I2C interface,
the TPS55288-Q1 is fully compliant to the USB
PD specification. The TPS55288-Q1 is capable of
delivering 100 W from 12-V input voltage.
– Programmable output current limit up to 6.35 A
with 50-mA step
– ±5% accurate output current monitoring
– I2C interface
The TPS55288-Q1 employs an average current-
mode control scheme. The switching frequency is
programmable from 200 kHz to 2.2 MHz by an
external resistor and can be synchronized to an
external clock. The TPS55288-Q1 also provides
optional spread spectrum to minimize peak EMI.
•
•
High efficiency over entire load range
– 97% efficiency at VIN = 12 V, VOUT = 20 V and
IOUT = 3 A
– Programmable PFM and FPWM mode at light
load
Avoid frequency interference and crosstalk
– Optional clock synchronization
– Programmable switching frequency from 200
kHz to 2.2 MHz
The TPS55288-Q1 offers output over-voltage
protection, average inductor current limit, cycle-by-
cycle peak current limit and output short circuit
protection. The TPS55288-Q1 also ensures safe
operating with optional output current limit and hiccup-
mode protection in sustained overload conditions.
•
•
EMI mitigation
– Optional programmable spread spectrum
– Lead-less package
The TPS55288-Q1 can use a small inductor and
small capacitors with high switching frequency. It is
available in a 4.0-mm × 3.5-mm QFN package.
Rich protection features
– Output overvoltage protection
– Hiccup mode for output short-circuit protection
– Thermal shutdown protection
– Programmable average inductor current limit up
to 16 A
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE
TPS55288-Q1
VQFN-HR
4.00 mm × 3.50 mm
•
•
Small solution size
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
– Maximum switching frequency up to 2.2 MHz
– 4.0-mm × 3.5-mm HotRod™ QFN package with
wettable flank option
Create a custom design using the TPS55288-Q1
with the WEBENCH® Power Designer
L1
4.7µH
C5
0.1µF
C4
0.1µF
VIN = 2.7V to 36V
SW1
SW2
BOOT2
DR1H DR1L BOOT1
VIN
VOUT =0.8V to 22V
VOUT
C1
R1
10mΩ
C2
2 Applications
C3
4.7µF
VCC
PGND
AGND
ISP
SCL
•
•
•
USB PD
SDA
ON
EN/UVLO
TPS55288-Q1
Automotive infotainment and cluster
Car charger
ISN
OFF
MODE
FB/INT
COMP
CDC
R6
DITH/SYNC
FSW
C6
R3
C7
R4
C8
ILIM
R5
R2
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.