SLVSFL2A May 2021 – August 2021 TPS7H4002-SP
The TPS7H4002-SP is a radiation hardened, 5.5-V, 3-A synchronous step-down converter, which is optimized for small designs through high efficiency and by integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, which reduces the inductor footprint.
The output voltage startup 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 also possible by correctly configuring the enable and the open drain power good pins. In addition, the TPS7H4002-SP can be configured in primary-secondary mode for parallel operation.
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 limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.
|5962R2021002VSC||Flight grade QMLV-RHA 100 krad(Si)||CFP (20)
7.37 mm × 12.75 mm
Mass = 1.22 g(4)
|5962R2021002V9A||Flight grade QMLV-RHA KGD 100 krad(Si)||Die|