TPS57140 Series

TPS57140-EP 1.5-A 42-V STEP-DOWN DC-DC CONVERTER WITH Eco-mode™ CONTROL

Catalog(1 parts)

Part	Operating Temperature▲▼	Operating Temperature▲▼	Output Type	Package / Case	Synchronous Rectifier▲▼	Topology	Mounting Type	Output Configuration	Number of Outputs▲▼	Supplier Device Package	Qualification	Grade	Function	Frequency - Switching▲▼	Frequency - Switching▲▼	Current - Output▲▼	Voltage - Input (Min)▲▼	Voltage - Input (Max)▲▼	Voltage - Output (Max)▲▼	Voltage - Output (Min/Fixed)▲▼
Texas Instruments TPS57140QDRCRQ1 Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1.5A 10-VFDFN Exposed Pad	150 °C	-40 °C	Adjustable	10-VFDFN Exposed Pad		Buck	Surface Mount	Positive	1 ul	10-VSON (3x3)	AEC-Q100	Automotive	Step-Down	100000 Hz	2500000 Hz	1.5 A	3.5 V	42 V	39 V	0.800000011920929 V

Key Features

• 3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control Scheme116-µA Operating Quiescent Current1.5-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start and SequencingUndervoltage and Overvoltage Power-Good OutputAdjustable Undervoltage Lockout (UVLO) Voltage and Hysteresis0.8-V Internal Voltage ReferenceSupports Defense, Aerospace, and Medical ApplicationsControlled BaselineOne Assembly and Test SiteOne Fabrication SiteAvailable in Military (–55°C to 125°C) Temperature RangeExtended Product Life CycleExtended Product-Change NotificationProduct Traceability3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control Scheme116-µA Operating Quiescent Current1.5-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start and SequencingUndervoltage and Overvoltage Power-Good OutputAdjustable Undervoltage Lockout (UVLO) Voltage and Hysteresis0.8-V Internal Voltage ReferenceSupports Defense, Aerospace, and Medical ApplicationsControlled BaselineOne Assembly and Test SiteOne Fabrication SiteAvailable in Military (–55°C to 125°C) Temperature RangeExtended Product Life CycleExtended Product-Change NotificationProduct Traceability

Description

The TPS57140-EP device is a 42-V, 1.5-A step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated output supply current to 116 µA. Using the enable pin reduces the shutdown supply current to 1.5 µA. UVLO is internally set at 2.5 V, but can be increased using the enable pin. The slow-start pin, which is also configurable for sequencing or tracking, controls the output voltage start-up ramp. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage. A wide switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition. The TPS57140-EP is available in a 10-pin VSON package (DRC). The TPS57140-EP device is a 42-V, 1.5-A step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated output supply current to 116 µA. Using the enable pin reduces the shutdown supply current to 1.5 µA. UVLO is internally set at 2.5 V, but can be increased using the enable pin. The slow-start pin, which is also configurable for sequencing or tracking, controls the output voltage start-up ramp. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage. A wide switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition. The TPS57140-EP is available in a 10-pin VSON package (DRC).