8-pin (DDA) package image

TPS54540BDDAR ACTIVE

4.5-V to 42-V input, 5-A step-down converter with Eco-mode™

ACTIVE custom-reels CUSTOM Custom reel may be available
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Pricing

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Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

TPS54540BDDA ACTIVE
Package qty | Carrier 75 | TUBE
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Qty | Price 1ku | +

Quality information

Rating Catalog
RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU | NIPDAUAG
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins HSOIC (DDA) | 8
Operating temperature range (°C) -40 to 150
Package qty | Carrier 2,500 | LARGE T&R

Features for the TPS54540B

  • High efficiency at light loads with pulse skipping Eco-mode™
  • 92-mΩ high-side MOSFET
  • 146-µA operating quiescent current and
    2-µA shutdown current
  • 100-kHz to 2.5-MHz Fixed switching frequency
  • Synchronizes to external clock
  • Low dropout at light loads with integrated BOOT recharge FET
  • Adjustable UVLO and hysteresis
  • 0.8 V 1% Internal voltage reference
  • 8-Pin HSOIC with PowerPAD™ package
  • –40°C to 150°C TJ operating range
  • Create a custom design using the TPS54540B with the WEBENCH® Power Designer

Description for the TPS54540B

The TPS54540B is a 42-V, 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 no-load-supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the EN (enable) pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using the EN pin. Output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54540B is available in an 8-pin thermally enhanced HSOIC PowerPAD package.

Pricing

Qty Price
+

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

TPS54540BDDA ACTIVE
Package qty | Carrier 75 | TUBE
Inventory
Qty | Price 1ku | +

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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