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TPS61288RQQT

更新时间： 2024-10-03 02:58:35
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德州仪器 - TI /
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30页 2797K
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TPS61288 18-V, 15-A, Fully Integrated Synchronous Boost Converter

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TPS61288RQQT 数据手册

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TPS61288  
SLVSFP3B – AUGUST 2020 – REVISED DECEMBER 2021  
TPS61288 18-V, 15-A, Fully Integrated Synchronous Boost Converter  
1 Features  
3 Description  
•
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.  
•
•
•
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)  
•
•
•
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.  
 
 
 
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