TPS54260-EP_17 Datasheet, PDF (1/50 Pages) Texas Instruments – 3.5-V to 60-V Step-Down Converter With Eco-mode Control Scheme

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TPS54260-EP
SLVSDN9A – DECEMBER 2016 – REVISED JANUARY 2017
TPS54260-EP 3.5-V to 60-V Step-Down Converter With Eco-mode™ Control Scheme
1 Features
•1 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
• 138-μA Operating Quiescent Current
• 1.3-μA Shutdown Current
• 100-kHz to 2.5-MHz Switching Frequency
• Synchronizes to External Clock
• Adjustable Slow-Start and Sequencing
• UV and OV Power Good Output
• Adjustable UVLO Voltage and Hysteresis
• 0.8-V Internal Voltage Reference
• 10-Pin HVSSOP and 10-Pin 3-mm × 3-mm VSON
Packages
• Supported by WEBENCH^® Software Tool
• Supports Defense, Aerospace, and Medical
Applications
– Controlled Baseline
– One Assembly and Test Site
– One Fabrication Site
– Available in Military (–55°C to 125°C)
Temperature Range
– Extended Product Life Cycle
– Extended Product-Change Notification
– Product Traceability
3 Description
The TPS54260-EP 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 and
tracking. An open drain power good signal indicates
the output is within 94% to 107% of the 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-EP is available in 10-pin thermally-
enhanced HVSSOP and 10-pin 3-mm × 3-mm VSON
package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS54260-EP
HVSSOP (10)
VSON (10)
3.00 mm × 4.90 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
• 12-V and 24-V Automotive and Industrial Systems
• Infotainment, Cluster, and ADAS Applications
Simplified Schematic
VIN
PWRGD
TPS54260-EP
EN
SS /TR
RT /CLK
COMP
BOOT
PH
VSENSE
GND
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs Load Current
VIN=12V
VOUT=3.3V
fsw=300kHz
0.5
1.0
1.5
2.0
2.5
3.0
I_O - Output Current - A
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.