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TPS54561 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54561 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 53 page 60 65 70 75 80 85 90 95 100 0 1 2 3 4 5 I O - Output Current (A) C024 V OUT = 12 V, fsw = 620kHz, V OUT = 5 V and 3.3 V, f sw = 400 kHz 12 V to 5 V 12 V to 3.3 V 36 V to 12 V SW VIN GND BOOT FB COMP TPS54561 EN RT/CLK VIN VOUT SS/TR PWRGD Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54561 SLVSBO1D – JULY 2013 – REVISED JULY 2015 TPS54561 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter with Soft-Start and Eco-mode™ 1 Features 3 Description The TPS54561 is a 60-V, 5-A, step down regulator 1 • High Efficiency at Light Loads with Pulse Skipping with an integrated high side MOSFET. The device Eco-mode™ survives load dump pulses up to 65V per ISO 7637. • 87-m Ω High-Side MOSFET Current mode control provides simple external • 152- μA Operating Quiescent Current and compensation and flexible component selection. A low ripple pulse skip mode reduces the no load 2- μA Shutdown Current supply current to 152 μA. Shutdown supply current is • 100-kHz to 2.5-MHz Adjustable Switching reduced to 2 μA when the enable pin is pulled low. Frequency Undervoltage lockout is internally set at 4.3 V but can • Synchronizes to External Clock increase using an external resistor divider at the • Low Dropout at Light Loads with Integrated BOOT enable pin. The output voltage start up ramp is Recharge FET controlled by the soft start pin that can also be • Adjustable UVLO Voltage and Hysteresis configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% • UV and OV Power Good Output to 106% of its nominal voltage. • Adjustable Soft-Start and Sequencing A wide adjustable switching-frequency range allows • 0.8-V 1% Internal Voltage Reference for optimization of either efficiency or external • 10-Pin SON with Thermal Pad Package component size. Cycle-by-cycle current limit, • –40°C to 150°C TJ Operating Range frequency foldback and thermal shutdown protects internal and external components during an overload • Supported by WEBENCH™ Software Tool condition. 2 Applications The TPS54561 is available in an 10-pin 4-mm × 4- mm WSON package. • Industrial Automation and Motor Control • Vehicle Accessories: GPS (see SLVA412), Device Information(1) Entertainment PART NUMBER PACKAGE BODY SIZE (NOM) • USB Dedicated Charging Ports and Battery TPS54561 WSON (10) 4.00 mm × 4.00 mm Chargers (see SLVA464) (1) For all available packages, see the orderable addendum at • 12-V, 24-V and 48-V Industrial, Automotive and the end of the data sheet. Communications Power Systems space Simplified Schematic Efficiency vs Load Current 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Número de pieza similar - TPS54561_15 |
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Descripción similar - TPS54561_15 |
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