TPS40075 Series

4.5-V to 28-V, synchronous buck controller with voltage feed forward

Catalog

4.5-V to 28-V, synchronous buck controller with voltage feed forward

Part	Duty Cycle (Max)	Output Phases	Topology	Number of Outputs	Output Type	Output Configuration	Supplier Device Package	Control Features	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Frequency - Switching [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Function	Mounting Type
Texas Instruments TPS40075RHLT	95 %	1	Buck	1	Transistor Driver	Positive	20-VQFN (3.5x4.5)	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	1 MHz	85 °C	-40 °C	20-VFQFN Exposed Pad	Step-Down	Surface Mount
Texas Instruments TPS40075RHLRG4	95 %	1	Buck	1	Transistor Driver	Positive	20-VQFN (3.5x4.5)	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	1 MHz	85 °C	-40 °C	20-VFQFN Exposed Pad	Step-Down	Surface Mount
Texas Instruments TPS40075RHLR	95 %	1	Buck	1	Transistor Driver	Positive	20-VQFN (3.5x4.5)	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	1 MHz	85 °C	-40 °C	20-VFQFN Exposed Pad	Step-Down	Surface Mount
Texas Instruments TPS40075RHLTG4	95 %	1	Buck	1	Transistor Driver	Positive	20-VQFN (3.5x4.5)	Current Limit Frequency Control Power Good Soft Start	4.5 V	28 V	1 MHz	85 °C	-40 °C	20-VFQFN Exposed Pad	Step-Down	Surface Mount

Catalog

4.5-V to 28-V, synchronous buck controller with voltage feed forward

Key Features

• Operation Over 4.5-V to 28-V Input RangeFixed-Frequency Voltage-Mode ControllerIntegrated Unity Gain Amplifier for Remote Output SensingPredictive Gate Drive™ Generation II for Improved Efficiency<1% Internal 700-mV ReferenceInput Voltage Feed Forward ControlPrebiased Output CompatibleInternal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETsSwitching Frequency Programmable to 1 MHz20-Pin QFN PackageThermal Shutdown ProtectionSoftware Design Tool and EVM AvailableAPPLICATIONSPower ModulesNetworking/TelecomIndustrialServersPredictive Gate Drive is a trademark of Texas Instruments.Operation Over 4.5-V to 28-V Input RangeFixed-Frequency Voltage-Mode ControllerIntegrated Unity Gain Amplifier for Remote Output SensingPredictive Gate Drive™ Generation II for Improved Efficiency<1% Internal 700-mV ReferenceInput Voltage Feed Forward ControlPrebiased Output CompatibleInternal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETsSwitching Frequency Programmable to 1 MHz20-Pin QFN PackageThermal Shutdown ProtectionSoftware Design Tool and EVM AvailableAPPLICATIONSPower ModulesNetworking/TelecomIndustrialServersPredictive Gate Drive is a trademark of Texas Instruments.

Description

The TPS40075 is a mid voltage, wide input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user programmable functions, including; soft start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection. The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to minimize conduction in the body diode of the low side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side FET to turn on until the voltage commanded by the closed loop soft start is greater than the pre-bias voltage. Voltage feed forward provides good response to input transients and provides a constant PWM gain over a wide input voltage operating range to ease compensation requirements. Programmable short circuit protection provides fault current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 20-pin QFN package gives good thermal performance and a compact footprint. The TPS40075 is a mid voltage, wide input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user programmable functions, including; soft start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection. The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to minimize conduction in the body diode of the low side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side FET to turn on until the voltage commanded by the closed loop soft start is greater than the pre-bias voltage. Voltage feed forward provides good response to input transients and provides a constant PWM gain over a wide input voltage operating range to ease compensation requirements. Programmable short circuit protection provides fault current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 20-pin QFN package gives good thermal performance and a compact footprint.