TPS50601A-SP Series
Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter
Manufacturer: Texas Instruments
Catalog
Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter
Key Features
• 5962-10221:Radiation hardened up to TID 100 krad(Si)ELDRS free 100 krad(Si) – 10 mrad(Si)/sSingle lhup (SEL) Immune toLET = 75 MeV-cm2/mgSEB and SEGR immune to 75 MeV-cm2/mg, SOA Curve AvailableSET/SEFI Cross-section plot availablepeak efficiency: 96.6% (VO= 3.3 V)Integrated 58-mΩ/50-mΩ MOSFETsPower rail: 3 to 7 V on VIN6-A Maximum output currentFlexible switching frequency options:100-kHz to 1-MHz Adjustable internal oscillatorExternal sync capability: 100 kHz to 1 MHzSync pin can be configured as a 500-kHz output for master/slave applications0.804-V ±1.5% Voltage reference overtemperature, radiation, and line and load regulationMonotonic start-up into prebiased outputsAdjustable soft start through external capacitorInput enable and power-good output for power sequencingPower good output monitor for undervoltage and overvoltageAdjustable input undervoltage lockout (UVLO)20-Pin Ultra-small, thermally-enhanced ceramic flatpack package (hkh) for space applications5962-10221:Radiation hardened up to TID 100 krad(Si)ELDRS free 100 krad(Si) – 10 mrad(Si)/sSingle lhup (SEL) Immune toLET = 75 MeV-cm2/mgSEB and SEGR immune to 75 MeV-cm2/mg, SOA Curve AvailableSET/SEFI Cross-section plot availablepeak efficiency: 96.6% (VO= 3.3 V)Integrated 58-mΩ/50-mΩ MOSFETsPower rail: 3 to 7 V on VIN6-A Maximum output currentFlexible switching frequency options:100-kHz to 1-MHz Adjustable internal oscillatorExternal sync capability: 100 kHz to 1 MHzSync pin can be configured as a 500-kHz output for master/slave applications0.804-V ±1.5% Voltage reference overtemperature, radiation, and line and load regulationMonotonic start-up into prebiased outputsAdjustable soft start through external capacitorInput enable and power-good output for power sequencingPower good output monitor for undervoltage and overvoltageAdjustable input undervoltage lockout (UVLO)20-Pin Ultra-small, thermally-enhanced ceramic flatpack package (hkh) for space applications
Description
AI
The TPS50601A-SP is a radiation hardened, 7-V, 6-A synchronous step-down converter, which is optimized for small designs through high efficiency and 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, reducing the inductor’s footprint. The devices are offered in an ultra small, thermally enhanced 20-pin ceramic flatpack package.
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 TPS50601A-SP can be configured in master-slave mode to provide up to 12-A of output current.
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 shutdown temperature.
The TPS50601A-SP is a radiation hardened, 7-V, 6-A synchronous step-down converter, which is optimized for small designs through high efficiency and 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, reducing the inductor’s footprint. The devices are offered in an ultra small, thermally enhanced 20-pin ceramic flatpack package.
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 TPS50601A-SP can be configured in master-slave mode to provide up to 12-A of output current.
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 shutdown temperature.