TPS54429E Series

7V to 18V Input, 4.5A Synchronous Step-Down DCAP2 Mode Converter with Eco-Mode

Catalog

7V to 18V Input, 4.5A Synchronous Step-Down DCAP2 Mode Converter with Eco-Mode

Part	Board Type	Current - Output	Utilized IC / Part	Outputs and Type	Outputs and Type	Supplied Contents	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Regulator Topology	Frequency - Switching	Function	Package / Case	Package / Case [y]	Package / Case [x]	Output Type	Number of Outputs	Voltage - Input (Max) [Max]	Topology	Mounting Type	Supplier Device Package	Voltage - Output (Min/Fixed)	Output Configuration	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]
Texas Instruments TPS54429EEVM-608	Fully Populated	4.5 A	TPS54429E	Non-Isolated	1	Board(s)	DC/DC Step Down	18 V	7 V	1.05 V	Buck	700 kHz
Texas Instruments TPS54429EPWP		4.5 A										700 kHz	Step-Down	14-PowerTSSOP	4.4 mm	0.173 in	Adjustable	1	18 V	Buck	Surface Mount	14-HTSSOP	0.76 V	Positive	7 V	5.5 V	-20 °C	85 C
Texas Instruments TPS54429EVM-608	Fully Populated	4.5 A	TPS54429	Non-Isolated	1	Board(s)	DC/DC Step Down	18 V	7 V	1.05 V	Buck	700 kHz
Texas Instruments TPS54429ERSAR		4.5 A										700 kHz	Step-Down	16-VQFN Exposed Pad			Adjustable	1	18 V	Buck	Surface Mount	16-QFN (4x4)	0.76 V	Positive	7 V	5.5 V	-20 °C	85 C
Texas Instruments TPS54429ERSAT		4.5 A										700 kHz	Step-Down	16-VQFN Exposed Pad			Adjustable	1	18 V	Buck	Surface Mount	16-QFN (4x4)	0.76 V	Positive	7 V	5.5 V	-20 °C	85 C
Texas Instruments TPS54429PWP		4.5 A										700 kHz	Step-Down	14-PowerTSSOP	4.4 mm	0.173 in	Adjustable	1	18 V	Buck	Surface Mount	14-HTSSOP	0.76 V	Positive	7 V	5.5 V	-20 °C	85 C

Catalog

7V to 18V Input, 4.5A Synchronous Step-Down DCAP2 Mode Converter with Eco-Mode

Key Features

• D-CAP2™ Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 7 V to 18 VOutput Voltage Range: 0.76 V to 5.5 VHighly Efficient Integrated FET’s Optimizedfor Lower Duty Cycle Applications– 63 mΩ (High Side) and 55 mΩ (Low Side)High Efficiency, less than 10 µA at shutdownHigh Initial Bandgap Reference AccuracyAdjustable Soft StartPre-Biased Soft Start700-kHz Switching Frequency (fSW)Cycle By Cycle Over Current LimitPower Good OutputAPPLICATIONSWide Range of Applications for Low Voltage SystemDigital TV Power SupplyHigh Definition Blu-ray Disc™ PlayersNetworking Home TerminalDigital Set Top Box (STB)SWIFT, D-CAP2, PowerPAD are trademarks of Texas Instruments.Blu-ray Disc is a trademark of Blu-ray Disc Association.D-CAP2™ Mode Enables Fast Transient ResponseLow Output Ripple and Allows Ceramic Output CapacitorWide VINInput Voltage Range: 7 V to 18 VOutput Voltage Range: 0.76 V to 5.5 VHighly Efficient Integrated FET’s Optimizedfor Lower Duty Cycle Applications– 63 mΩ (High Side) and 55 mΩ (Low Side)High Efficiency, less than 10 µA at shutdownHigh Initial Bandgap Reference AccuracyAdjustable Soft StartPre-Biased Soft Start700-kHz Switching Frequency (fSW)Cycle By Cycle Over Current LimitPower Good OutputAPPLICATIONSWide Range of Applications for Low Voltage SystemDigital TV Power SupplyHigh Definition Blu-ray Disc™ PlayersNetworking Home TerminalDigital Set Top Box (STB)SWIFT, D-CAP2, PowerPAD are trademarks of Texas Instruments.Blu-ray Disc is a trademark of Blu-ray Disc Association.

Description

The TPS54429E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429E enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54429E uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54429E to maintain high efficiency during lighter load conditions. The TPS54429E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 7-V to 18-V VIN input. The output voltage can be programmed between 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54429E is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –20°C to 85°C. The TPS54429E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429E enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54429E uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54429E to maintain high efficiency during lighter load conditions. The TPS54429E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 7-V to 18-V VIN input. The output voltage can be programmed between 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54429E is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –20°C to 85°C.