TPS543C20A Series

4-V to 19-V, 25-A synchronous SWIFT™ buck converter with adaptive internal compensation

Catalog

4-V to 19-V, 25-A synchronous SWIFT™ buck converter with adaptive internal compensation

Part	Function	Supplier Device Package	Current - Output	Topology	Package / Case	Output Type	Number of Outputs	Voltage - Output (Min/Fixed) [Min]	Voltage - Input (Max) [Max]	Frequency - Switching	Voltage - Input (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Max) [Max]	Mounting Type	Output Configuration	Outputs and Type	Outputs and Type	Voltage - Output	Supplied Contents	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Board Type	Utilized IC / Part	Regulator Topology	Voltage - Output (Min/Fixed)	Frequency - Switching [Max]	Frequency - Switching [Min]
Texas Instruments TPS543A26RYSR	Step-Down	17-WQFN-FCRLF (2.5x4.5)	16 A	Buck	17-PowerWFQFN	Adjustable	1	0.5 V	18 V	1 MHz 1.5 MHz 2.2 MHz 500 kHz 750 kHz	18 V	150 °C	-40 °C	7 V	Surface Mount Wettable Flank	Positive
Texas Instruments TPS543B20EVM-054			25 A							500 kHz							Non-Isolated	1	0.9 V	Board(s)	19 V	5 V	DC/DC Step Down	Fully Populated	TPS543B20	Buck
Texas Instruments TPS54362EVM			3 A														Non-Isolated	1	5 V	Board(s)	48 V	3.6 V	DC/DC Step Down	Fully Populated	TPS54362	Buck
Texas Instruments TPS54329EEVM-056			3 A							650 kHz							Non-Isolated	1	1.05 V	Board(s)	18 V	4.5 V	DC/DC Step Down	Fully Populated	TPS54329	Buck
Texas Instruments TPS543B20RVFT	Step-Down	40-LQFN-CLIP (7x5)	25 A	Buck	40-PowerLFQFN	Adjustable	1		19 V		4 V	125 ¯C	-40 °C	5.5 V	Surface Mount	Positive											0.6 V	2 MHz	300 kHz
Texas Instruments TPS54335EVM-556			3 A							340 kHz							Non-Isolated	1	5 V	Board(s)	28 V	8 V	DC/DC Step Down	Fully Populated	TPS54335	Buck
Texas Instruments TPS543C20ARVFR	Step-Down	40-LQFN-CLIP (7x5)	40 A	Buck	40-PowerLFQFN	Adjustable	1		16 V		4 V	125 ¯C	-40 °C	5.5 V	Surface Mount	Positive											0.6 V	2 MHz	300 kHz
Texas Instruments TPS543C20EVM-799			40 A							500 kHz							Non-Isolated	1	0.9 V	Board(s)	16 V	5 V	DC/DC Step Down	Fully Populated	TPS543C20	Buck
Texas Instruments TPS543C20RVFT	Step-Down	40-LQFN-CLIP (7x5)	40 A	Buck	40-PowerLFQFN	Adjustable	1		16 V		4 V	125 ¯C	-40 °C	5.5 V	Surface Mount	Positive											0.6 V	2 MHz	300 kHz
Texas Instruments TPS543B20RVFR	Step-Down	40-LQFN-CLIP (7x5)	25 A	Buck	40-PowerLFQFN	Adjustable	1		19 V		4 V	125 ¯C	-40 °C	5.5 V	Surface Mount	Positive											0.6 V	2 MHz	300 kHz

Catalog

4-V to 19-V, 25-A synchronous SWIFT™ buck converter with adaptive internal compensation

Key Features

• Fixed-frequency, internally compensated, advanced current mode (ACM) controlIntegrated 6.5mΩ and 2mΩ MOSFETs4V to 18V input voltage range0.5V to 7V output voltage rangeTrue differential remote sense amplifier (RSA)Three selectable PWM ramp options to optimize the control loop performanceFive selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHzSynchronizable to an external clock0.5V, ±0.5% voltage reference accuracy over full temperature range1ms, 2ms, 4ms, and 8ms selectable soft-start timesMonotonic start-up into prebiased outputsSelectable current limits to support 16A and 12A operationEnable with adjustable input undervoltage lockoutPower-good output monitorOutput overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection–40°C to 150°C operating junction temperature2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitchLead-free (RoHS compliant)Pin compatible with theTPS543B22andTPS543A22Available in thermally enhanced packageTPS543B25T(drop-in compatible)SIMPLIS models availableCreate a custom design using the TPS543A26 with theWEBENCH® Power DesignerFixed-frequency, internally compensated, advanced current mode (ACM) controlIntegrated 6.5mΩ and 2mΩ MOSFETs4V to 18V input voltage range0.5V to 7V output voltage rangeTrue differential remote sense amplifier (RSA)Three selectable PWM ramp options to optimize the control loop performanceFive selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHzSynchronizable to an external clock0.5V, ±0.5% voltage reference accuracy over full temperature range1ms, 2ms, 4ms, and 8ms selectable soft-start timesMonotonic start-up into prebiased outputsSelectable current limits to support 16A and 12A operationEnable with adjustable input undervoltage lockoutPower-good output monitorOutput overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection–40°C to 150°C operating junction temperature2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitchLead-free (RoHS compliant)Pin compatible with theTPS543B22andTPS543A22Available in thermally enhanced packageTPS543B25T(drop-in compatible)SIMPLIS models availableCreate a custom design using the TPS543A26 with theWEBENCH® Power Designer

Description

The TPS543A26 is a high-efficiency 18V, 16A synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small solution size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections. The TPS543A26 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package. The TPS543A26 is a high-efficiency 18V, 16A synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small solution size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections. The TPS543A26 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.