TPS57160-Q1_16 Datasheet, PDF (1/54 Pages) Texas Instruments – 1.5-A 60-V Step-Down DC-DC Converter With Eco-mode Control

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TPS57160-Q1
SLVSAP1E – DECEMBER 2010 – REVISED MARCH 2015
TPS57160-Q1 1.5-A 60-V Step-Down DC-DC Converter
With Eco-mode™ Control
1 Features
•1 Qualified for Automotive Applications
• 3.5-V to 60-V Input Voltage Range
• 200-mΩ High-Side MOSFET
• High Efficiency at Light Loads With Pulse-
Skipping Eco-mode™ Control Scheme
• 116-μA Operating Quiescent Current
• 1.5-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 Undervoltage Lockout (UVLO) Voltage
and Hysteresis
• 0.8-V Internal Voltage Reference
• Supported by SwitcherPro™ Software Tool
(ti.com/tool/switcherpro)
• Z-Suffix Offers Improved Delamination
3 Description
The TPS57160-Q1 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, input
supply current to 116 μA. Using the enable pin,
shutdown supply current is reduced to 1.5 μA.
Undervoltage lockout is set internally 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 or tracking. An
open-drain power-good signal indicates the output is
within 92% to 109% of the nominal voltage.
A wide switching frequency range allows efficiency
and external component size to be optimized.
Frequency foldback and thermal shutdown protects
the part during an overload condition.
The TPS57160-Q1 device is available in a 10-pin
thermally enhanced MSOP-PowerPAD™ (DGQ) or
10-pin VSON (DRC) package. The Z-suffix offers
reduced delamination compared to standard device.
2 Applications
• 12-V, 24-V, and 48-V Industrial and Commercial
Low-Power Systems
• Aftermarket Automotive Accessories: Video, GPS,
Entertainment
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS57160-Q1
MSOP-PowerPAD (10) 3.00 mm × 3.00 mm
VSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified Schematic
VIN
PWRGD
TPS57160
EN
BOOT
PH
SS /TR
RT /CLK
COMP
VSENSE
GND
EFFICIENCY
vs
LOAD CURRENT
90
85
80
75
70
65
60
V_I = 12 V,
V_O = 3.3 V,
55
f_sw = 1200 kHz
50
0 0.25 0.50 0.75 1 1.25 1.50 1.75 2
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.