TPS54060A_16 Datasheet, PDF (1/53 Pages) Texas Instruments – Step-Down DC–DC Converter

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TPS54060A
SLVSB57C – MARCH 2012 – REVISED JANUARY 2016
TPS54060A 0.5-A, 60-V Step-Down DC–DC Converter With Eco-Mode™
1 Features
• 3.5V to 60V Input Voltage Range
• 200-mΩ High-Side MOSFET
• High Efficiency at Light Loads with a Pulse
Skipping Eco-Mode™
• Tighter Enable Threshold than TPS54060
for More Accurate UVLO Voltage
• Adjustable UVLO Voltage and Hysteresis
• 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
• 0.8-V Internal Voltage Reference
• MSOP-10 and 3mm x 3mm VSON-10 Package
With PowerPAD™
• Supported by WEBENCH^® and SwitcherPro™
Software Tool
2 Applications
• 12-V, 24-V and 48-V Industrial and Commercial
Low Power Systems
• Aftermarket Auto Accessories: Video, GPS,
Entertainment
1
3 Description
The TPS54060A 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 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS54060A
HVSSOP (10)
VSON (10)
3.00 mm × 3.00 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
V_IN
VIN
PWRGD
TPS54060A
BOOT
EN
SS /TR
PH
RT /CLK
COMP
VSENSE
GND
V_OUT
Efficiency vs Load Current
100
90
80
70
60
50
40
30
20
V_I = 12 V
V_O = 3.3 V
10
ƒ_sw = 500 kHz
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)
C033
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.