Summary

The Texas Instruments TPS7H4010-SEP is a synchronous step-down DC/DC converter that is capable of driving a load current of up to 6A from a supply voltage that can range from 3.5 to 32 V.

The TPS7H4010-SEP is designed to be easy to use and to provide a high level of efficiency and output accuracy in a small size. It has a pinout designed for a simple PCB layout that includes optimal thermal and EMI performance.

Peak current-mode control is employed as standard and additional features are available for enhanced versatility including; power-good flag, external clock synchronization, FPWM, and adjustable switching frequency.

In order to improve efficiency over the entire operational load range, the converter includes optional external bias and automatic frequency foldback at light loads.

Few external components are required and the system includes a variety of protective features including input undervoltage lockout, hiccup short-circuit protection, thermal shutdown, and cycle-by-cycle current limiting.

Applications

Orderable Part Numbers

Key features

  • Radiation Hardened
    • 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
      20 krad(Si)
    • TID characterized up to 30 krad(Si)
  • 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
  • Wide voltage conversion range:
    • tON-MIN =60 ns (typical)
    • tOFF-MIN =70 ns (typical)
  • Low MOSFET ON-resistance:
    • RDS_ON_HS =53 mΩ (typical)
    • RDS_ON_LS =31 mΩ (typical)
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Synchronizable to external clock
  • Internal compensation
  • Power-good flag
  • Precision enable to program system UVLO
  • Fixed or adjustable soft-start time
  • Cycle-by-cycle current limiting
  • Short-circuit protection with hiccup mode
  • Thermal shutdown protection

Testing & qualification

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Last updated: 2021-12-21

TPS7H4010-SEP

Radiation-hardened, 3.5-V to 32-V, 6-A step-down voltage converter in space-enhanced plastic

Downloads

Specs

input voltage
3.5 to 32 V
output voltage
1 to 30.4 V
output current
< 6 A
operating temperature
-55 to 125 C
RoHS compliance
yes
REACH compliance
yes
export control
EAR99

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