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TPS55288 Datasheet Preview

TPS55288 Datasheet

Buck-boost Converter

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TPS55288
SLVSF01 – MARCH 2020
TPS55288 36-V, 16-A Buck-boost Converter with I2C Interface
1 Features
1 Input voltage range: 2.7 V to 36 V
• Output voltage range: 0.8 V to 21.26 V
• 97% efficiency at VIN = 12 V, VOUT = 20 V and
IOUT = 3 A
• Programmable average inductor current limit up to
16 A
• Adjustable switching frequency 200 kHz to
2.4 MHz
• Adjustable output voltage compensation for
voltage droop over the cable
• Programmable PFM and FPWM mode at light
load
• Programmable output voltage up to 21.26 V
• Programmable output current limit
• ±1% reference voltage accuracy
• Fixed 4-ms soft-start time
• I2C Interface
• Output over-voltage protection
• Hiccup mode for output short-circuit protection
• Thermal shutdown protection
• 4.0-mm × 3.5-mm Hotrod™ QFN package
2 Applications
• USB PD
• Car charger
• Docking station
• Industrial PC
3 Description
The TPS55288 is a synchronous buck-boost
converter optimized for converting battery voltage or
adaptor voltage into power supply rails. The
TPS55288 integrates two 16-A MOSFETs of the
boost leg to balance the solution size and efficiency
for USB Power Delivery (USB PD) application.
The TPS55288 has up to 36 V input voltage
capability. It can output 15 A when working in buck
mode. When working in boost mode, the device
delivers 100 W from 8 V input or 60 W from 5 V input.
When the input is a single cell Li-ion battery, the
device outputs 45 W with input voltage down to 3.1 V.
The switching frequency is programmable from 200
kHz to 2.4 MHz through an external resistor.
Through the I2C interface, the output voltage of the
TPS55288 can be programmed from 0.8 V to 21.26 V
with a 20-mV step. The default output voltage is 5 V
when the device is enabled.
The TPS55288 has output over-voltage protection,
cycle-by-cycle switch peak-current limit, and output
short-circuit protection.
The TPS55288 can use a small inductor and small
capacitors with high switching frequency. It is
available in 4.0-mm × 3.5-mm QFN package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE
TPS55288
VQFN-HR
4.00 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
L1
4.7µH
VIN = 2.7V to 36V
C1
OFF
C4
0.1µF
DR1H DR1L BOOT1 SW1
VIN
SW2
C3 VCC
4.7µF
SCL
SDA
ON
EN/UVLO
MODE
R6
TPS55288
C8
R2
DITH/SYNC
FSW
C5
0.1µF
BOOT2
VOUT
PGND
AGND
ISP
ISN
FB/INT
COMP
CDC
ILIM
R5
VOUT =0.8V to 22V
C2
R1
10
C6
R3
R4
C7
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. ADVANCE INFORMATION for pre-production products; subject to
change without notice.




etcTI

TPS55288 Datasheet Preview

TPS55288 Datasheet

Buck-boost Converter

No Preview Available !

TPS55288
SLVSF01 – MARCH 2020
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 Handling Ratings....................................................... 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 I2C Timing Characteristics........................................ 9
7 Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 18
7.5 I2C Serial Interface ................................................. 18
7.6 Register Maps ......................................................... 22
8 Application and Implementation ........................ 30
8.1 Application Information............................................ 30
8.2 Typical Application ................................................. 30
9 Power Supply Recommendations...................... 36
10 Layout................................................................... 37
10.1 Layout Guidelines ................................................. 37
10.2 Layout Example .................................................... 38
11 Device and Documentation Support ................. 39
11.1 Device Support...................................................... 39
11.2 Receiving Notification of Documentation Updates 39
11.3 Support Resources ............................................... 39
11.4 Trademarks ........................................................... 39
11.5 Electrostatic Discharge Caution ............................ 39
11.6 Glossary ................................................................ 39
12 Mechanical, Packaging, and Orderable
Information ........................................................... 40
13 Package Drawings .............................................. 41
13.1 Package Outline.................................................... 41
13.2 Land Pattern.......................................................... 42
13.3 Solder Paste.......................................................... 43
4 Revision History
DATE
March 2020
REVISION
*
NOTES
Advance Information release.
2
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Product Folder Links: TPS55288
Copyright © 2020, Texas Instruments Incorporated



Part Number TPS55288
Description Buck-boost Converter
Maker etcTI
Total Page 3 Pages
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