The TPS7H4001-SP is a radiation-hardness-assured, 7-V, 18-A synchronous buck
converter with integrated low-resistance high-side and low-side MOSFETs. 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 TPS7H4001-SP 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. Thermal shutdown disables the part when die temperature exceeds
thermal limit.
The TPS7H4001-SP is a radiation-hardness-assured, 7-V, 18-A synchronous buck
converter with integrated low-resistance high-side and low-side MOSFETs. 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 TPS7H4001-SP 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. Thermal shutdown disables the part when die temperature exceeds
thermal limit.