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TPS61253YFFT Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce TPS61253YFFT
Description  3.5-MHz HIGH EFFICIENCY STEP-UP CONVERTER IN CHIP SCALE PACKAGING
Download  34 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61253YFFT Fiches technique(HTML) 6 Page - Texas Instruments

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A1
A2
A3
B2
C2
B3
C3
B1
C1
A1
A2
A3
B2
C2
B3
C3
B1
C1
BOTTOM VIEW
TOP VIEW
Undervoltage
Lockout
Thermal
Shutdown
Softstart
Control
Logic
PMOS
Valley
Current
Sense
V
REF
VOUT
GND
SW
VIN
NMOS
Modulator
BP
EN
TPS61253, TPS61254, TPS61256, TPS61258
SLVSAG8B – SEPTEMBER 2011 – REVISED MAY 2012
www.ti.com
PIN ASSIGNMENTS
Table 1. TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
This is the mode selection pin of the device and is only of relevance when the device is disabled
(EN = Low). This pin must not be left floating and must be terminated. Refer to Table 3 for more
details.
BP
C3
I
BP = Low: The device is in true shutdown mode.
BP = High: The output is biased at the input voltage level with a maximum load current capability of
ca. 150mA. In standby mode, the device only consumes a standby current of 22µA (typ).
This is the enable pin of the device. Connecting this pin to ground forces the device into shutdown
EN
B3
I
mode. Pulling this pin high enables the device. This pin must not be left floating and must be
terminated.
GND
C1, C2
Ground pin.
SW
B1, B2
I/O
This is the switch pin of the converter and is connected to the drain of the internal Power MOSFETs.
VIN
A3
I
Power supply input.
VOUT
A1, A2
O
Boost converter output.
FUNCTIONAL BLOCK DIAGRAM
6
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Copyright © 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS61253 TPS61254 TPS61256 TPS61258


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