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TPS54040-Q1

Texas Instruments
Part Number TPS54040-Q1
Manufacturer Texas Instruments
Description 42-V Step Down DC/DC Converter
Published Apr 1, 2021
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54040-Q1 SLVSA26E – JANUARY...
Datasheet PDF File TPS54040-Q1 PDF File

TPS54040-Q1
TPS54040-Q1

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54040-Q1 SLVSA26E – JANUARY 2010 – REVISED JUNE 2015 TPS54040-Q1 0.
5-A 42-V Step-Down DC-DC Converter With Eco-Mode™ 1 Features •1 Qualified for Automotive Applications • 3.
5-V to 42-V Input Voltage Range • 200-mΩ High-Side MOSFET • High Efficiency at Light Loads with a Pulse Skipping Eco-Mode™ Control Scheme • 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 and Sequencing • Undervoltage and Overvoltage Power-good Output • Adjustable Undervoltage Lockout Voltage and Hysteresis • 0.
8-V Internal Voltage Reference • Supported by SwitcherPro™ Software Tool (http://focus.
ti.
com/docs/toolsw/folders/print/switch erpro.
html) 2 Applications • 12-V and 24-V Industrial and Commercial Low Power Systems • Automotive Infotainment, Head Unit, Display Navigation, Audio and Clusters • Automotive Body applications, HVAC, Wireless Charging • Advanced Driver Assistance System (ADAS), Rear View Camera Module, Blind Spot Radar SPACE Simplified Schematic VIN PWRGD TPS54040 EN BOOT PH SS /TR RT /CLK COMP VSENSE GND 3 Description The TPS54040-Q1 device is a 42-V 0.
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.
3 μA, when the enable pin is low.
Undervoltage 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 or tracking.
An open drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.
A wide switching frequency range allows efficiency and external component si...


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