TPS54560-Q1 Datasheet, PDF (1/43 Pages) Texas Instruments – 4.5 V to 60 V Input, 5 A, Step Down DC-DC Converter with Eco-mode

TPS54560-Q1
www.ti.com
SLVSBZ0 – SEPTEMBER 2013
4.5 V to 60 V Input, 5 A, Step Down DC-DC Converter with Eco-mode™
Check for Samples: TPS54560-Q1
FEATURES
1
•23 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following
Results:
– Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H1C
– Device CDM ESD Classification Level C3B
• High Efficiency at Light Loads with Pulse
Skipping Eco-mode™
• 92-mΩ High-Side MOSFET
• 146 μA Operating Quiescent Current and 2 µA
Shutdown Current
• 100 kHz to 2.5 MHz Adjustable Switching
Frequency
• Synchronizes to External Clock
• Low Dropout at Light Loads with Integrated
BOOT Recharge FET
• Adjustable UVLO Voltage and Hysteresis
• 0.8 V 1% Internal Voltage Reference
• 8-Pin HSOIC with PowerPAD™ Package
• –40°C to 150°C T_JOperating Range
• Supported by WEBENCH^® Software Tool
SIMPLIFIED SCHEMATIC
V_IN
VIN
BOOT
TPS54560-Q1
EN
SW
V_OUT
COMP
RT/CLK
FB
GND
APPLICATIONS
• Vehicle Accessories: GPS (See SLVA412),
Entertainment, ADAS, eCall
• USB Dedicated Charging Ports and Battery
Chargers (See SLVA464)
• Industrial Automation and Motor Control
• 12 V, 24 V and 48 V Industrial, Automotive and
Communications Power Systems
DESCRIPTION
The TPS54560-Q1 is a 60 V, 5 A, step down
regulator with an integrated high side MOSFET. The
device survives load dump pulses up to 65V per ISO
7637. Current mode control provides simple external
compensation and flexible component selection. A
low ripple pulse skip mode reduces the no load
supply current to 146 μA. Shutdown supply current is
reduced to 2 μA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can
be increased using an external resistor divider at the
enable pin. The output voltage start up ramp is
internally controlled to provide a controlled start up
and eliminate overshoot.
A wide adjustable frequency range allows either
efficiency or external component size to be optimized.
Output current is limited cycle-by-cycle. Frequency
foldback and thermal shutdown protects internal and
external components during an overload condition.
The TPS54560-Q1 is available in an 8-pin thermally
enhanced HSOIC PowerPAD package.
EFFICIENCY vs LOAD CURRENT
100
36 V to 12 V
95
90
85
12 V to 3.3 V
80
12 V to 5 V
75
70
65
V_OUT = 12 V, fsw = 800kHz,
V_OUT = 5 V and 3.3 V, f sw = 400 kHz
60
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
I_O - Output Current (A)
C024
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Eco-mode, PowerPAD are trademarks of Texas Instruments.
2
WEBENCH is a registered trademark of Texas Instruments.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated