TPS54160_15 Datasheet, PDF (1/57 Pages) Texas Instruments – TPS54160 1.5-A, 60-V, Step-Down DC/DC Converter with Eco-mode™

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TPS54160, TPS54160A
SLVSB56C – MAY 2012 – REVISED FEBRUARY 2014
TPS54160 1.5-A, 60-V, Step-Down DC/DC Converter with Eco-mode™
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™
• TPS54160A has Tighter Enable Threshold Than
TPS54160 for More Accurate UVLO voltage
• Adjustable UVLO Voltage and Hysteresis
• 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
• UV and OV Power Good Output
• 0.8-V Internal Voltage Reference
• MSOP10 and 3mm x 3mm VSON Package with
PowerPAD™
• Supported by WEBBENCH^® 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
3 Description
The TPS54160A device is a 60-V, 1.5-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.
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.
Device Information
ORDER NUMBER PACKAGE (PIN)
TPS54160DGQ
TPS54160ADGQ
MSOP (10)
TPS54160ADRC
VSON (10)
BODY SIZE
3mm x 3mm
3mm x 3mm
4 Simplified Schematic
VIN
PWRGD
TPS54160A
EN
BOOT
SS /TR
RT /CLK
COMP
PH
VSENSE
GND
Figure 1. Efficiency vs Load Current
90
85
80
75
70
65
60
V_IN = 12 V
55
V_OUT = 3.3 V
f_SW = 1200 kHz
0
0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Load Current (A)
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.