TPS54060 Datasheet, PDF (1/47 Pages) Texas Instruments – 0.5A, 60V STEP DOWN SWIFT™ DC/DC CONVERTER WITH ECO-MODE™

TPS54060
www.ti.com ............................................................................................................................................................................................... SLVS919 – JANUARY 2009
0.5A, 60V STEP DOWN
SWIFT™ DC/DC CONVERTER WITH ECO-MODE™
FEATURES
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•2 3.5V to 60V Input Voltage Range
• 200-mΩ High-Side MOSFET
• High Efficiency at Light Loads with a Pulse
Skipping Eco-Mode™
• 116µA Operating Quiescent Current
• 1.3µA Shutdown Current
• 100kHz to 2.5MHz Switching Frequency
• Synchronizes to External Clock
• Adjustable Slow Start/Sequencing
• UV and OV Power Good Output
• Adjustable UVLO Voltage and Hysteresis
• 0.8-V Internal Voltage Reference
• MSOP10 Package With PowerPAD™
• 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 Auto Accessories: Video, GPS,
Entertainment
DESCRIPTION
The TPS54060 device is a 60V, 0.5A, 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 116µA. Using the enable pin, shutdown supply current is
reduced to 1.3µA, when the enable pin is low.
Under voltage lockout is internally set at 2.5V, 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 93% 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.
The TPS54060 is available in 10 pin thermally enhanced MSOP Power Pad™ package.
SIMPLIFIED SCHEMATIC
VIN
PWRGD
TPS54060
EN
BOOT
SS /TR
RT /CLK
COMP
PH
VSENSE
GND
100
90
80
70
60
50
40
30
20
10
0
0
EFFICIENCY
vs
LOAD CURRENT
V_I = 12 V,
V_O = 3.3 V,
f_sw = 500 kHz
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
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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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 © 2009, Texas Instruments Incorporated