Boost Converter. TPS61288 Datasheet

TPS61288 Converter. Datasheet pdf. Equivalent

TPS61288 Datasheet
Recommendation TPS61288 Datasheet
Part TPS61288
Description Fully Integrated Synchronous Boost Converter
Feature TPS61288; www.ti.com TPS61288 SLVSFP3A – AUGUST 2020 – REVISED DECTEMPBSE6R12208280 SLVSFP3A – AUGUST 2020 – .
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Texas Instruments TPS61288
www.ti.com
TPS61288
SLVSFP3A – AUGUST 2020 – REVISED DECTEMPBSE6R12208280
SLVSFP3A – AUGUST 2020 – REVISED DECEMBER 2020
TPS61288 18-V, 15-A, Fully Integrated Synchronous Boost Converter
1 Features
• 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
– 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
• Rich protection
– Output overvoltage protection at 19 V
– Cycle-by-cycle overcurrent protection
– Thermal shutdown
• 2.5-mm × 3.0-mm QFN package
2 Applications
Bluetoothspeaker
Source driver of LCD display
USB type-C power delivery
VIN
SW
3 Description
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.
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.
The TPS61288 is available in a 2.5-mm × 3.0-mm
QFN package.
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE (NOM)
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.
VOUT
VOUT
R1
Control
BST
VIN
ON
FB
R2
EN
OFF
COMP
VCC
Cc
Cp
PGND
AGND
Rc
Typical Application Circuit
CopyrighAtn©I2M0P20OTReTxaAsNInTsNtruOmTeInCtsEInactotrhpeoreatnedd of this data sheet addresses availability, warranty, changes, use iSnusbamfeittyD-corcituicmael anpt pFleiceadtbioancsk,
1
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Product Folder Links: TPS61288



Texas Instruments TPS61288
TPS61288
SLVSFP3A – AUGUST 2020 – REVISED DECEMBER 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.................................................................. 4
6.1 Absolute Maximum Ratings ....................................... 4
6.2 ESD Ratings .............................................................. 4
6.3 Recommended Operating Conditions ........................4
6.4 Thermal Information ...................................................4
6.5 Electrical Characteristics ............................................5
6.6 Typical Characteristics................................................ 7
7 Detailed Description........................................................9
7.1 Overview..................................................................... 9
7.2 Functional Block Diagram........................................... 9
7.3 Feature Description...................................................10
7.4 Device Functional Modes..........................................10
8 Application and Implementation.................................. 12
8.1 Application Information............................................. 12
8.2 Typical Application.................................................... 12
9 Power Supply Recommendations................................19
10 Layout...........................................................................20
10.1 Layout Guidelines................................................... 20
10.2 Layout Example...................................................... 20
11 Device and Documentation Support..........................22
11.1 Receiving Notification of Documentation Updates.. 22
11.2 Support Resources................................................. 22
11.3 Trademarks............................................................. 22
11.4 Electrostatic Discharge Caution.............................. 22
11.5 Glossary.................................................................. 22
12 Mechanical, Packaging, and Orderable
Information.................................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (September 2020) to Revision A (December 2020)
Page
• Changed device status from Advance Information to Production Data.............................................................. 1
2
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Copyright © 2020 Texas Instruments Incorporated



Texas Instruments TPS61288
www.ti.com
TPS61288
SLVSFP3A – AUGUST 2020 – REVISED DECEMBER 2020
5 Pin Configuration and Functions
VCC AGND SW BST
FB
VIN
COMP
EN
SW
PGND
VOUT
NAME
FB
COMP
PGND
SW
VOUT
EN
VIN
BST
AGND
VCC
PIN
NUMBER
1
2
3
4,9
5
6
7
8
10
11
Figure 5-1. 11-Pin RQQ VQFN Package (Top View)
Table 5-1. Pin Functions
I/O
DESCRIPTION
I
O
PWR
PWR
PWR
I
I
O
-
O
Voltage feedback. Connect to the center tape of a resistor divider to program the output
voltage.
Output of the internal error amplifier, the loop compensation network should be
connected between this pin and the AGND pin.
Power ground of the IC. It is connected to the source of the low-side MOSFET.
The switching node pin of the converter. It is connected to the drain of the internal low-
side power MOSFET and the source of the internal high-side power MOSFET.
Boost converter output
Enable logic input. Logic high level enables the device. Logic low level disables the
device and turns it into shutdown mode.
IC power supply input
Power supply for high-side MOSFET gate driver. A ceramic capacitor of 0.1 µF must be
connected between this pin and the SW pin.
Signal ground of the IC
Output of the internal regulator. A ceramic capacitor of more than 1.0 µF is required
between this pin and ground.
Copyright © 2020 Texas Instruments Incorporated
Product Folder Links: TPS61288
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