TPS57160-Q1 Datasheet, PDF (1/54 Pages) Texas Instruments – 1.5-A 60-V STEP-DOWN SWIFT™ DC/DC CONVERTER WITH Eco-mode™ CONTROL

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
FEATURES
1
•2 Qualified for Automotive Applications
• 3.5-V to 60-V Input Voltage Range
• 200-mΩ High-Side MOSFET
• High Efficiency at Light Loads With Pulse-
Skipping Eco-mode™ Control Scheme
• 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
• Undervoltage and Overvoltage Power-good
Output
• Adjustable Undervoltage Lockout (UVLO)
Voltage and Hysteresis
• 0.8-V Internal Voltage Reference
• Supported by SwitcherPro™ Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/s
witcherpro.html)
• 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 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
VIN
PWRGD
TPS57160
EFFICIENCY
vs
LOAD CURRENT
90
85
EN
BOOT
SS /TR
RT /CLK
COMP
PH
VSENSE
GND
80
75
70
65
60
V_I = 12 V,
V_O = 3.3 V,
55
f_sw = 1200 kHz
50
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.
2
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