TPS50301-HT Series

1.6-V to 6.3-V INPUT, 3-A SYNCHRONOUS STEP DOWN CONVERTER

Catalog

1.6-V to 6.3-V INPUT, 3-A SYNCHRONOUS STEP DOWN CONVERTER

Part	Frequency - Switching	Voltage - Output (Min/Fixed)	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Synchronous Rectifier	Package / Case	Current - Output	Mounting Type	Number of Outputs	Output Type	Voltage - Input (Max) [Max]	Function	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Topology	Output Configuration
Texas Instruments TPS50301SHKH	500 kHz	0.795 V	-55 °C	220 °C	20-CFP		20-CDFF	3 A	Surface Mount	1	Adjustable	6.3 V	Step-Down	3 V	5.5 V	Buck	Positive

Catalog

1.6-V to 6.3-V INPUT, 3-A SYNCHRONOUS STEP DOWN CONVERTER

Key Features

• Peak Efficiency: 95% (VO= 3.3 V)Integrated 55-mΩ/50-mΩ MOSFETsSplit Power Rail: 1.6 to 6.3 V on PVINPower Rail: 3 to 6.3 V on VIN3 AFlexible 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 Applications0.795-V ±1.258% Voltage Reference at 25°CMonotonic Start-Up into Prebiased OutputsAdjustable Slow Start and Power SequencingPower Good Output Monitor for Undervoltage and OvervoltageAdjustable Input Undervoltage Lockout (UVLO)20-Pin Thermally-Enhanced Ceramic Flatpack Package (HKH)See theTools & SoftwareTabCreate a custom design using the TPS50301-HT with theWEBENCH®Power DesignerPeak Efficiency: 95% (VO= 3.3 V)Integrated 55-mΩ/50-mΩ MOSFETsSplit Power Rail: 1.6 to 6.3 V on PVINPower Rail: 3 to 6.3 V on VIN3 AFlexible 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 Applications0.795-V ±1.258% Voltage Reference at 25°CMonotonic Start-Up into Prebiased OutputsAdjustable Slow Start and Power SequencingPower Good Output Monitor for Undervoltage and OvervoltageAdjustable Input Undervoltage Lockout (UVLO)20-Pin Thermally-Enhanced Ceramic Flatpack Package (HKH)See theTools & SoftwareTabCreate a custom design using the TPS50301-HT with theWEBENCH®Power Designer

Description

The TPS50301-HT is a 6.3-V, 3-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 a thermally enhanced 20-pin ceramic, dual in-line flatpack package. The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a standalone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. 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 TPS50301-HT is a 6.3-V, 3-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 a thermally enhanced 20-pin ceramic, dual in-line flatpack package. The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a standalone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. 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.