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TPS54418ARTER Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce TPS54418ARTER
Description  2.95-V to 6-V Input, 4-A Output, 2-MHz , Synchronous Step-Down Switcher With Integrated FETs (SWIFT??
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54418ARTER Fiches technique(HTML) 3 Page - Texas Instruments

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VIN
GND
GND
PH
PH
SS
PH
1
4
3
2
16
15
14
13
12
9
10
11
5
6
7
8
Thermal
Pad
VIN
3
TPS54418A
www.ti.com
SLVSC75A – AUGUST 2013 – REVISED SEPTEMBER 2016
Product Folder Links: TPS54418A
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
(1)
I = Input, O = Output, G = Ground
6 Pin Configuration and Functions
RTE (WQFN) PACKAGE
16 PINS
(TOP VIEW)
Pin Functions
PIN
I/O(1)
DESCRIPTION
NAME
NO.
AGND
5
G
Analog ground should be electrically connected to GND close to the device.
BOOT
13
I
A bootstrap capacitor is required between BOOT and PH. If the voltage on this capacitor is below the
minimum required by the BOOT UVLO, the output is forced to switch off until the capacitor is refreshed.
COMP
7
O
Error amplifier output, and input to the output switch current comparator. Connect frequency
compensation components to this pin.
EN
15
I
Enable pin, internal pull-up current source. Pull below 1.2 V to disable. Float to enable. Can be used to
set the on/off threshold (adjust UVLO) with two additional resistors.
GND
3
G
Power ground. This pin should be electrically connected directly to the power pad under the device.
4
PH
10
O
The source of the internal high-side power MOSFET, and drain of the internal low-side (synchronous)
rectifier MOSFET.
11
12
PWRGD
14
O
An open drain output, asserts low if output voltage is low due to thermal shutdown, overcurrent,
over/under-voltage or EN shut down.
RT/CLK
8
I/O
Resistor Timing or External Clock input pin.
SS
9
I/O
Slow-start. An external capacitor connected to this pin sets the output voltage rise time. Soft
VIN
1
I
Input supply voltage, 2.95 V to 6 V.
2
16
VSENSE
6
I
Inverting node of the transconductance (gm) error amplifier.
Thermal Pad
G
GND pin should be connected to the exposed power pad for proper operation. This power pad should
be connected to any internal PCB ground plane using multiple vias for good thermal performance.


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