TPS54160A_13 Datasheet, PDF (1/53 Pages) Texas Instruments – 1.5-A, 60-V, Step-Down SWIFT DC/DC Converter with Eco-mode

TPS54160A
www.ti.com
SLVSB56A – MAY 2012 – REVISED AUGUST 2012
1.5-A, 60-V, Step-Down
SWIFT™ DC/DC Converter with Eco-mode™
Check for Samples: TPS54160A
FEATURES
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•23 3.5 V to 60 V Input Voltage Range
• 200-mΩ High-Side MOSFET
• High Efficiency at Light Loads with a Pulse
Skipping Eco-mode™
• Tighter Enable Threshold than TPS54160 for
More Accurate UVLO Voltage
• Adjustable UVLO Voltage and Hysteresis
• 116 μA Operating Quiescent Current
• 1.3 μA Shutdown Current
• 100 kHz to 2.5 MHz Switching Frequency
• Synchronizes to External Clock
• Adjustable Slow Start/Sequencing
• UV and OV Power Good Output
• 0.8-V Internal Voltage Reference
• MSOP10 and 3mm x 3mm VSON Package with
PowerPAD™
• Supported by WEBBENCH^® and SwitcherPro™
Software Tool
• For SWIFT™ Documentation, See the TI
Website at http://www.ti.com/swift
APPLICATIONS
• 12-V, 24-V and 48-V Industrial and Commercial
Low Power Systems
• Aftermarket Auto Accessories: Video, GPS,
Entertainment
DESCRIPTION
The TPS54160A device is a 60-V, 1.5-A, step down regulator with an integrated high-side MOSFET. Current
mode control provides simple external compensation and flexible component selection. A low ripple pulse skip
mode reduces the no load, regulated output supply current to 116 μA. Using the enable pin, shutdown supply
current is reduced to 1.3 μA.
Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage
startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open
drain power good signal indicates the output is within 94% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold
back and thermal shutdown protects the part during an overload condition.
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SIMPLIFIED SCHEMATIC
VIN
PWRGD
TPS54160A
EN
BOOT
SS /TR
RT /CLK
COMP
PH
VSENSE
GND
EFFICIENCY vs LOAD CURRENT
90
85
80
75
70
65
60
V_IN = 12 V
55
V_OUT = 3.3 V
f_SW = 1200 kHz
0
0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Load Current (A)
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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, SwitcherPro, SWIFT are trademarks of Texas Instruments.
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WEBBENCH is a registered trademark of Texas Instruments.
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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 © 2012, Texas Instruments Incorporated