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TPS61253A Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TPS61253A
Description  3.8-MHz, 5-V / 4-A Boost Converter in 1.2-mm x 1.3-mm WCSP
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61253A Fiches technique(HTML) 4 Page - Texas Instruments

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A1
A2
A3
B2
C2
B3
C3
B1
C1
4
TPS61253A
SLVSDE4 – MARCH 2017
www.ti.com
Product Folder Links: TPS61253A
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
6 Pin Configuration and Functions
YFF Package
9-Pin DSBGA
Top View
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
EN
B3
I
This is the enable pin of the device. Connecting this pin to ground forces the device into
shutdown mode. Pulling this pin high enables the device. There is an internal resistor pulled
to GND.
GND
C1, C2
Ground pin.
MODE
C3
Operation mode selection pin.
Mode = Low, the device works in the Auto PFM mode with good light load efficiency.
Mode = High, the device is in the forced PWM mode, keep the switching frequency be
constant crossing the whole load range.
Mode = Floating, the device works in the ultrasonic mode; it keeps the switching frequency
larger than 25 kHz to avoid the acoustic frequency toward no load condition.
SW
B1, B2
I/O
The switch pin of the converter. It is connected to the drain of the internal low-side power
FET and the source of the internal high-side power FET
VIN
A3
I
Power supply input
VOUT
A1, A2
O
Boost converter output
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
MAX
UNIT
Voltage range at terminals
Voltage at VIN, EN, MODE, VOUT
–0.3
6
V
Voltage at SW
–0.3
7
V
Storage temperature, Tstg
-65
150
°C


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