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TPS54334 Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza TPS54334
Descripción Electrónicos  Synchronous Step-Down Voltage Converter
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54334 Datasheet(HTML) 3 Page - Texas Instruments

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1
2
3
4
5
6
7
8
BOOT
VIN
SW
GND
PGOOD
EN
COMP
VSENSE
PowerPAD
1
2
3
4
5
10
9
8
7
6
VIN
SW
GND
GND
GND
PGOOD
BOOT
EN
COMP
VSENSE
Thermal Pad
3
TPS54334
www.ti.com
SLUSC26A – MAY 2015 – REVISED FEBRUARY 2016
Product Folder Links: TPS54334
Submit Documentation Feedback
Copyright © 2015–2016, Texas Instruments Incorporated
5 Pin Configuration and Functions
DRC Package
10 Pin VSON
Top View
DDA Package
8 Pin SO
Top View
Pin Functions
PIN
NAME
NUMBER
I/O
DESCRIPTION
DDA
DRC
BOOT
1
9
O
A bootstrap capacitor is required between BOOT and SW. If the voltage on this capacitor is below the
minimum required by the output device, the output is forced to switch off until the capacitor is
refreshed.
COMP
6
7
O
Error amplifier output, and input to the output switch current comparator. Connect frequency
compensation components to this pin.
EN
7
8
I
Enable pin. Float to enable.
GND
4
3, 4, 5
Ground.
PGOOD
8
10
O
PGOOD open drain output. Connect a pull-up resistor with a value of 100k
Ω to this pin.
SW
3
2
O
The source of the internal high side power MOSFET.
Vin
2
1
Input supply voltage, 4.2 V to 28 V.
VSENSE
5
6
I
Inverting node of the gm error amplifier.
PowerPad (SO only)
GND pin should be connected to the exposed thermal pad for proper operation. This thermal pad
should be connected to any internal PCB ground plane using multiple vias for good thermal
performance.
Thermal pad (VSON only)


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