Document
TPS54060-Q1
www.ti.com
SLVSA25A – JANUARY 2010 – REVISED MARCH 2011
0.5-A 60-V STEP-DOWN SWIFT™ DC/DC CONVERTER WITH Eco-mode™
Check for Samples: TPS54060-Q1
FEATURES
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• Qualified for Automotive Applications • 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™ Control Scheme • 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 • Undervoltage and Overvoltage Power Good
Output
• Adjustable 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 Auto Accessories: Video, GPS, Entertainment
DESCRIPTION
The TPS54060 device is a 60-V 0.5-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, when the enable pin is low.
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 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 a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).
SIMPLIFIED SCHEMATIC
VIN PWRGD TPS54060
EFFICIENCY vs
LOAD CURRENT
100
90
80
Efficiency - %
EN BOOT PH
70 60 50
SS /TR RT /CLK COMP
VSENSE
GND
40
30 VI = 12 V, 20 VO = 3.3 V,
fsw = 500 kHz 10
0 0 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.
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 © 2010–2011, Texas Instruments Incorporated
TPS54060-Q1
SLVSA25A – JANUARY 2010 – REVISED MARCH 2011
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TJ –40°C to 150°C
MSOP – DGQ SON – DRC
ORDERING INFORMATION
PACKAGE
ORDERABLE PART NUMBER
Reel of 2500
TPS54060QDGQRQ1
Reel of 3000
TPS54060QDRCRQ1
TOP-SIDE MARKING 5406Q 5406Q
ABSOLUTE MAXIMUM RATINGS(1)
Over operating temperature range (unless otherwise noted).
Input voltage
VIN EN (2) BOOT VSENSE COMP PWRGD SS/TR RT/CLK BOOT-PH
Output voltage
PH
200 ns 30 ns
Maximum dc voltage, Tj=-40C
Voltage difference PAD to GND
EN
BOOT
Source current
VSENSE
PH
RT/CLK
VIN
Sink current
COMP PWRGD
SS/TR
Electrostatic discharge rating
Human-Body Model (HBM) QSS 009-105 (JESD22-A114A) Machine Model (MM) QSS 009-105 (JESD22-A115A) Charged-Device Model (CDM) QSS 009-147 (JESD22-C101B.01)
Operating junction temperature
Storage temperature
VALUE –0.3 V to 65 V –0.3 V to 5 V
73 V –0.3 V to 3 V –0.3 V to 3 V –0.3 V to 6 V –0.3 V to 3 V –0.3 V to 3.6 V
8V –0.6 V to 65 V –1 V to 65 V –2 V to 65 V
-0.85V ±200 mV 100 μA 100 mA
10 μA Current Limit
100 μA Current Limit
100 μA 10 mA 200 μA 500 V 50 V 1000 V –40°C to 150°C –65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) See Enable and Adjusting Undervoltage Lockout for details.
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Copyright © 2010–2011, Texas Instrum.