TPS54260QDGQRQ1 Datasheet, PDF (1/50 Pages) Texas Instruments – 3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE™

TPS54260-Q1
www.ti.com
SLVSAH8C – DECEMBER 2010 – REVISED MAY 2013
3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE™
Check for Samples: TPS54260-Q1
FEATURES
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•2 Qualified for Automotive Applications
• AEC Q100 Qualified with the Following
Results:
– Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C5
• 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™
• 138μA 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 and 24-V Industrial and Commercial Low
Power Systems
• GSM, GPRS Modules in Fleet Management, E-
Meters, and Security Systems
DESCRIPTION
The TPS54260-Q1 device is a 60 V, 2.5 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 138 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 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.
The TPS54260-Q1 is available in 10-pin thermally enhanced MSOP Power Pad™ package.
space
SIMPLIFIED SCHEMATIC
VIN
PWRGD
TPS54260-Q1
EFFICIENCY vs LOAD CURRENT
100
90
80
70
EN
BOOT
SS /TR
RT /CLK
COMP
PH
VSENSE
60
50
40
30
VIN=12V
20
VOUT=3.3V
fsw=300kHz
10
GND
0
0
0.5
1.0
1.5
2.0
2.5
3.0
I_O - Output 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 © 2010–2013, Texas Instruments Incorporated