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TPS54561 Datasheet(PDF) 1 Page - Texas Instruments

No. de pieza TPS54561
Descripción Electrónicos  TPS54561 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter with Soft-Start and Eco-mode?
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS54561 Datasheet(HTML) 1 Page - Texas Instruments

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0
1
2
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4
5
I
O - Output Current (A)
C024
V
OUT = 12 V, fsw = 620kHz,
V
OUT = 5 V and 3.3 V, f sw = 400 kHz
12 V to 5 V
12 V to 3.3 V
36 V to 12 V
SW
VIN
GND
BOOT
FB
COMP
TPS54561
EN
RT/CLK
VIN
VOUT
SS/TR
PWRGD
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
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Community
TPS54561
SLVSBO1D – JULY 2013 – REVISED JULY 2015
TPS54561 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter
with Soft-Start and Eco-mode™
1 Features
3 Description
The TPS54561 is a 60-V, 5-A, step down regulator
1
High Efficiency at Light Loads with Pulse Skipping
with an integrated high side MOSFET. The device
Eco-mode™
survives load dump pulses up to 65V per ISO 7637.
87-m
Ω High-Side MOSFET
Current
mode
control
provides
simple
external
152-
μA Operating Quiescent Current and
compensation and flexible component selection. A
low ripple pulse skip mode reduces the no load
2-
μA Shutdown Current
supply current to 152
μA. Shutdown supply current is
100-kHz to 2.5-MHz Adjustable Switching
reduced to 2
μA when the enable pin is pulled low.
Frequency
Undervoltage lockout is internally set at 4.3 V but can
Synchronizes to External Clock
increase using an external resistor divider at the
Low Dropout at Light Loads with Integrated BOOT
enable pin. The output voltage start up ramp is
Recharge FET
controlled by the soft start pin that can also be
Adjustable UVLO Voltage and Hysteresis
configured for sequencing/tracking. An open drain
power good signal indicates the output is within 93%
UV and OV Power Good Output
to 106% of its nominal voltage.
Adjustable Soft-Start and Sequencing
A wide adjustable switching-frequency range allows
0.8-V 1% Internal Voltage Reference
for optimization of either efficiency or external
10-Pin SON with Thermal Pad Package
component
size.
Cycle-by-cycle
current
limit,
–40°C to 150°C TJ Operating Range
frequency foldback and thermal shutdown protects
internal and external components during an overload
Supported by WEBENCH™ Software Tool
condition.
2 Applications
The TPS54561 is available in an 10-pin 4-mm × 4-
mm WSON package.
Industrial Automation and Motor Control
Vehicle Accessories: GPS (see SLVA412),
Device Information(1)
Entertainment
PART NUMBER
PACKAGE
BODY SIZE (NOM)
USB Dedicated Charging Ports and Battery
TPS54561
WSON (10)
4.00 mm × 4.00 mm
Chargers (see SLVA464)
(1) For all available packages, see the orderable addendum at
12-V, 24-V and 48-V Industrial, Automotive and
the end of the data sheet.
Communications Power Systems
space
Simplified Schematic
Efficiency vs Load Current
1
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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