TPS57160-Q1
www.ti.com
SLVSAP1C –DECEMBER 2010–REVISED AUGUST 2012
1.5-A 60-V STEP-DOWN SWIFT™ DC/DC CONVERTER
WITH Eco-mode™ CONTROL
Check for Samples: TPS57160-Q1
1
FEATURES
•
Adjustable Undervoltage Lockout (UVLO)
Voltage and Hysteresis
2
•
•
•
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Qualified for Automotive Applications
3.5-V to 60-V Input Voltage Range
200-mΩ High-Side MOSFET
•
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0.8-V Internal Voltage Reference
Supported by SwitcherPro™ Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/s
witcherpro.html)
High Efficiency at Light Loads With Pulse-
Skipping Eco-mode™ Control Scheme
•
For SWIFT™ Documentation, See the TI
Website at http://www.ti.com/swift
•
•
•
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116-μA Operating Quiescent Current
1.5-μA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start/Sequencing
APPLICATIONS
•
12-V, 24-V, and 48-V Industrial and Commercial
Low Power Systems
Undervoltage and Overvoltage Power-good
Output
•
Aftermarket Automotive Accessories: Video,
GPS, Entertainment
DESCRIPTION
The TPS57160-Q1 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, input supply current to 116 μA. Using the enable pin, shutdown supply current is
reduced to 1.5 μA.
Undervoltage lockout is set internally 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 or tracking. An open-
drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency
foldback and thermal shutdown protects the part during an overload condition.
The TPS57160-Q1 is available in 10-pin thermally enhanced MSOP PowerPAD™ (DGQ) or 10-pin SON (DRC)
package.
SIMPLIFIED SCHEMATIC
EFFICIENCY
vs
LOAD CURRENT
VIN
PWRGD
90
TPS57160
85
80
EN
BOOT
PH
75
70
65
60
55
50
SS/TR
RT/CLK
COMP
VI = 12 V,
VO = 3.3 V,
fsw = 1200 kHz
VSENSE
GND
0
0.25
0.50 0.75
1
1.25 1.50
1.75
2
Load Current - A
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, SwitcherPro, SWIFT, PowerPAD are trademarks 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 © 2010–2012, Texas Instruments Incorporated