TPS543 Series

4-V to 18-V input, advanced current mode, 16-A synchronous SWIFT™ step-down converter

Catalog(10 parts)

Part	Voltage - Output (Max)▲▼	Supplier Device Package	Output Configuration	Current - Output▲▼	Voltage - Input (Min)▲▼	Mounting Type	Function	Voltage - Output (Min/Fixed)▲▼	Output Type	Number of Outputs▲▼	Topology	Frequency - Switching▲▼	Voltage - Input (Max)▲▼	Package / Case	Operating Temperature▲▼	Operating Temperature▲▼	Main Purpose	Voltage - Input▲▼	Voltage - Input▲▼	Utilized IC / Part	Supplied Contents	Board Type	Outputs and Type	Outputs and Type▲▼	Voltage - Output▲▼	Frequency - Switching▲▼	Frequency - Switching▲▼
Texas Instruments TPS543A26RYSR Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 16A 17-PowerWFQFN	7 V	17-WQFN-FCRLF (2.5x4.5)	Positive	16 A	18 V	Surface Mount, Wettable Flank	Step-Down	0.5 V	Adjustable	1 ul	Buck	500000 Hz, 750000 Hz, 1000000 Hz, 1500000 Hz, 2200000 Hz	18 V	17-PowerWFQFN	150 °C	-40 °C
Texas Instruments TPS543B20EVM-054 TPS543B20 SWIFT™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board				25 A								500000 Hz					DC/DC, Step Down	5 V	19 V	TPS543B20	Board(s)	Fully Populated	Non-Isolated	1 ul	0.8999999761581421 V
Texas Instruments TPS54362EVM TPS54362 - DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board				3 A													DC/DC, Step Down	3.5999999046325684 V	48 V	TPS54362	Board(s)	Fully Populated	Non-Isolated	1 ul	5 V
Texas Instruments TPS54329EEVM-056 TPS54329 SWIFT™, D-CAP2™, Eco-Mode™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board				3 A								650000 Hz					DC/DC, Step Down	4.5 V	18 V	TPS54329	Board(s)	Fully Populated	Non-Isolated	1 ul	1.0499999523162842 V
Texas Instruments TPS543B20RVFT Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 25A 40-PowerLFQFN	5.5 V	40-LQFN-CLIP (7x5)	Positive	25 A	4 V	Surface Mount	Step-Down	0.6000000238418579 V	Adjustable	1 ul	Buck		19 V	40-PowerLFQFN	125 °C	-40 °C										2000000 Hz	300000 Hz
Texas Instruments TPS54335EVM-556 TPS54335 SWIFT™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board				3 A								340000 Hz					DC/DC, Step Down	8 V	28 V	TPS54335	Board(s)	Fully Populated	Non-Isolated	1 ul	5 V
Texas Instruments TPS543B20EVM-799 TPS543B20 SWIFT™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board				25 A								500000 Hz					DC/DC, Step Down	5 V	19 V	TPS543B20	Board(s)	Fully Populated	Non-Isolated	1 ul	0.8999999761581421 V
Texas Instruments TPS543C20ARVFR Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 40A 40-PowerLFQFN	5.5 V	40-LQFN-CLIP (7x5)	Positive	40 A	4 V	Surface Mount	Step-Down	0.6000000238418579 V	Adjustable	1 ul	Buck		16 V	40-PowerLFQFN	125 °C	-40 °C										2000000 Hz	300000 Hz
Texas Instruments TPS543C20EVM-799 TPS543C20 SWIFT™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board				40 A								500000 Hz					DC/DC, Step Down	5 V	16 V	TPS543C20	Board(s)	Fully Populated	Non-Isolated	1 ul	0.8999999761581421 V
Texas Instruments TPS543A22RYSR Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 12A 17-PowerWFQFN	7 V	17-WQFN-FCRLF (2.5x4.5)	Positive	12 A	4 V	Surface Mount, Wettable Flank	Step-Down	0.5 V	Adjustable	1 ul	Buck	750000 Hz, 1000000 Hz, 1500000 Hz, 2200000 Hz	18 V	17-PowerWFQFN	150 °C	-40 °C

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.