44-pin (DDW) package image


Radiation-tolerant, 3-V to 7-V, 18-A, synchronous step-down converter in space-enhanced plastic

ACTIVE custom-reels CUSTOM Custom reel may be available
Same as: V62/21609-01XE-T This part number is identical to the part number listed above. You can only order quantities of the part number listed above.
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Qty Price

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

Package qty | Carrier 35 | TUBE
Qty | Price 100u | +

Quality information

Rating Space
RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-3-260C-168 HR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins HTSSOP (DDW) | 44
Operating temperature range (°C) -55 to 125
Package qty | Carrier 250 | SMALL T&R

Features for the TPS7H4003-SEP

  • Radiation performance:
    • SEL, SEB, and SEGR immune up to LET = 43 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 43 MeV-cm2/mg
    • TID assured for every wafer lot up to 50 krad(Si)
  • Peak efficiency: 94% (VO = 1 V at 100 kHz)
  • Integrated 17-mΩ and 9-mΩ MOSFETs
  • Power rail: 3 V to 7 V on VIN
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100kHz to 1MHz
    • SYNC pins can be configured as 500-kHz clocks at 90° out of phase to parallel up to 4 devices
  • 0.6-V ±1.7% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • 44-pin PowerPAD™ HTSSOP package
  • Space Enhanced Plastic:
    • Controlled baseline
    • Au bondwire and NiPdAu lead finish
    • Enhanced mold compound for low outgassing
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Extended product change notification
    • Product traceability

Description for the TPS7H4003-SEP

The TPS7H4003-SEP is a radiation-tolerant, 7-V, 18-A synchronous buck converter with integrated low-resistance high-side and low-side MOSFETs in a thermally enhanced 34-pin ceramic flatpack package. High efficiency and reduced component count are achieved through current mode control.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is possible by correctly configuring the enable and the power good pins. The TPS7H4003-SEP can be configured in primary-secondary mode and with the SYNC2 pin, four devices can be configured in parallel without an external clock.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current protection which prevents current runaway. There is also a low-side sinking current protection which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.


Qty Price

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

Package qty | Carrier 35 | TUBE
Qty | Price 100u | +

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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