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TPS54040

Texas Instruments
Part Number TPS54040
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 SLVS918B – MARCH 2009...
Datasheet PDF File TPS54040 PDF File

TPS54040
TPS54040

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54040 SLVS918B – MARCH 2009 – REVISED JANUARY 2016 TPS54040 0.
5-A, 42-V Step Down DC/DC Converter with Eco-Mode™ 1 Features •1 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™ • 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 • Adjustable UVLO Voltage and Hysteresis • 0.
8-V Internal Voltage Reference • MSOP10 Package With PowerPAD™ • 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 • Aftermarket Auto Accessories: Video, GPS, Entertainment Simplified Schematic VIN PWRGD TPS54040 EN BOOT PH SS /TR RT /CLK COMP VSENSE GND 3 Description The TPS54040 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, regulated output supply current to 116 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/tracking.
An open drain power good signal indicates the output is within 93% 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.
The TPS54040 is available in 10-pin thermally enhanced HVSSOP PowerPAD package.
Device Information(1) PART NUMBER PACK...


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